115725645 has 64 divisors (see below), whose sum is σ = 236974080. Its totient is φ = 52488000.

The previous prime is 115725619. The next prime is 115725661. The reversal of 115725645 is 546527511.

115725645 is a `hidden beast` number, since 1 + 1 + 5 + 7 + 2 + 5 + 645 = 666.

It is not a de Polignac number, because 115725645 - 2¹⁶ = 115660109 is a prime.

It is a super-3 number, since 3×115725645³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142290 + ... + 143100.

It is an arithmetic number, because the mean of its divisors is an integer number (3702720).

Almost surely, 2^115725645 is an apocalyptic number.

115725645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115725645 is an abundant number, since it is smaller than the sum of its proper divisors (121248435).

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

115725645 is a wasteful number, since it uses less digits than its factorization.

115725645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 977 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 115725645 is about 10757.5854632905. The cubic root of 115725645 is about 487.3151014784.

The spelling of 115725645 in words is "one hundred fifteen million, seven hundred twenty-five thousand, six hundred forty-five".