115121925 has 24 divisors (see below), whose sum is σ = 211484480. Its totient is φ = 61398000.

The previous prime is 115121899. The next prime is 115121927. The reversal of 115121925 is 529121511.

It is not a de Polignac number, because 115121925 - 2⁶ = 115121861 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115121927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84601 + ... + 85950.

Almost surely, 2^115121925 is an apocalyptic number.

115121925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115121925 is a deficient number, since it is larger than the sum of its proper divisors (96362555).

115121925 is a wasteful number, since it uses less digits than its factorization.

115121925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170570 (or 170559 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

The square root of 115121925 is about 10729.4885712228. The cubic root of 115121925 is about 486.4662116738.

The spelling of 115121925 in words is "one hundred fifteen million, one hundred twenty-one thousand, nine hundred twenty-five".