1165164925 has 12 divisors (see below), whose sum is σ = 1445710420. Its totient is φ = 931547520.

The previous prime is 1165164893. The next prime is 1165164941. The reversal of 1165164925 is 5294615611.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 87946884 + 1077218041 = 9378^2 + 32821^2 .

It is not a de Polignac number, because 1165164925 - 2⁵ = 1165164893 is a prime.

It is a congruent 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, 28561 + ... + 56089.

Almost surely, 2^1165164925 is an apocalyptic number.

It is an amenable number.

1165164925 is a deficient number, since it is larger than the sum of its proper divisors (280545495).

1165164925 is a wasteful number, since it uses less digits than its factorization.

1165164925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29232 (or 29227 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 1165164925 is about 34134.5122273631. The cubic root of 1165164925 is about 1052.2747132640.

The spelling of 1165164925 in words is "one billion, one hundred sixty-five million, one hundred sixty-four thousand, nine hundred twenty-five".