2144135251 has 8 divisors (see below), whose sum is σ = 2281672800. Its totient is φ = 2007865728.

The previous prime is 2144135219. The next prime is 2144135269. The reversal of 2144135251 is 1525314412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144135251 - 2⁵ = 2144135219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144135051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 313516 + ... + 320281.

It is an arithmetic number, because the mean of its divisors is an integer number (285209100).

Almost surely, 2^2144135251 is an apocalyptic number.

2144135251 is a deficient number, since it is larger than the sum of its proper divisors (137537549).

2144135251 is a wasteful number, since it uses less digits than its factorization.

2144135251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634013.

The product of its digits is 4800, while the sum is 28.

The square root of 2144135251 is about 46304.8080764838. The cubic root of 2144135251 is about 1289.4882594525.

Adding to 2144135251 its reverse (1525314412), we get a palindrome (3669449663).

The spelling of 2144135251 in words is "two billion, one hundred forty-four million, one hundred thirty-five thousand, two hundred fifty-one".