115557093 has 6 divisors (see below), whose sum is σ = 166915814. Its totient is φ = 77038056.

The previous prime is 115557061. The next prime is 115557103. The reversal of 115557093 is 390755511.

115557093 is a `hidden beast` number, since 1 + 15 + 557 + 0 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91527489 + 24029604 = 9567^2 + 4902^2 .

It is not a de Polignac number, because 115557093 - 2⁵ = 115557061 is a prime.

It is a super-2 number, since 2×115557093² = 26706883485221298, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115557053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6419830 + ... + 6419847.

Almost surely, 2^115557093 is an apocalyptic number.

It is an amenable number.

115557093 is a deficient number, since it is larger than the sum of its proper divisors (51358721).

115557093 is a wasteful number, since it uses less digits than its factorization.

115557093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12839683 (or 12839680 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 36.

The square root of 115557093 is about 10749.7485086861. The cubic root of 115557093 is about 487.0783984132.

The spelling of 115557093 in words is "one hundred fifteen million, five hundred fifty-seven thousand, ninety-three".