1154142025 has 12 divisors (see below), whose sum is σ = 1436712732. Its totient is φ = 919715840.

The previous prime is 1154142013. The next prime is 1154142071. The reversal of 1154142025 is 5202414511.

It can be written as a sum of positive squares in 6 ways, for example, as 3779136 + 1150362889 = 1944^2 + 33917^2 .

It is not a de Polignac number, because 1154142025 - 2²⁵ = 1120587593 is a prime.

It is a super-2 number, since 2×1154142025² = 2664087627742201250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83392 + ... + 96241.

It is an arithmetic number, because the mean of its divisors is an integer number (119726061).

Almost surely, 2^1154142025 is an apocalyptic number.

It is an amenable number.

1154142025 is a deficient number, since it is larger than the sum of its proper divisors (282570707).

1154142025 is a wasteful number, since it uses less digits than its factorization.

1154142025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179900 (or 179895 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1154142025 is about 33972.6658506512. The cubic root of 1154142025 is about 1048.9458884490.

Adding to 1154142025 its reverse (5202414511), we get a palindrome (6356556536).

The spelling of 1154142025 in words is "one billion, one hundred fifty-four million, one hundred forty-two thousand, twenty-five".