115928557 has 8 divisors (see below), whose sum is σ = 122581760. Its totient is φ = 109330560.

The previous prime is 115928551. The next prime is 115928563. The reversal of 115928557 is 755829511.

It is an interprime number because it is at equal distance from previous prime (115928551) and next prime (115928563).

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

It is not a de Polignac number, because 115928557 - 2⁷ = 115928429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115928551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9444 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (15322720).

Almost surely, 2^115928557 is an apocalyptic number.

It is an amenable number.

115928557 is a deficient number, since it is larger than the sum of its proper divisors (6653203).

115928557 is a wasteful number, since it uses less digits than its factorization.

115928557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27603.

The product of its digits is 126000, while the sum is 43.

The square root of 115928557 is about 10767.0124454279. The cubic root of 115928557 is about 487.5997527188.

The spelling of 115928557 in words is "one hundred fifteen million, nine hundred twenty-eight thousand, five hundred fifty-seven".