2144153025 has 147 divisors (see below), whose sum is σ = 4650678931. Its totient is φ = 980184240.

The previous prime is 2144153003. The next prime is 2144153129. The reversal of 2144153025 is 5203514412.

2144153025 = 6524² + 6525² + ... + 6573².

The square root of 2144153025 is 46305.

It is a perfect power (a square), and thus also a powerful number.

2144153025 is a `hidden beast` number, since 214 + 415 + 30 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 771895089 + 1372257936 = 27783^2 + 37044^2 .

It is a tau number, because it is divible by the number of its divisors (147).

It is not a de Polignac number, because 2144153025 - 2²¹ = 2142055873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144153025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 146 ways as a sum of consecutive naturals, for example, 306307572 + ... + 306307578.

Almost surely, 2^2144153025 is an apocalyptic number.

2144153025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2144153025 is the 46305-th square number.

2144153025 is the 23153-rd centered octagonal number.

It is an amenable number.

2144153025 is an abundant number, since it is smaller than the sum of its proper divisors (2506525906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2144153025 is an frugal number, since it uses more digits than its factorization.

2144153025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 15 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The cubic root of 2144153025 is about 1289.4918225519.

Adding to 2144153025 its reverse (5203514412), we get a palindrome (7347667437).

The spelling of 2144153025 in words is "two billion, one hundred forty-four million, one hundred fifty-three thousand, twenty-five".