115399556 has 24 divisors (see below), whose sum is σ = 214194624. Its totient is φ = 54283680.

The previous prime is 115399549. The next prime is 115399589. The reversal of 115399556 is 655993511.

It is a super-3 number, since 3×115399556³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670 + ... + 15893.

It is an arithmetic number, because the mean of its divisors is an integer number (8924776).

Almost surely, 2^115399556 is an apocalyptic number.

It is an amenable number.

115399556 is a deficient number, since it is larger than the sum of its proper divisors (98795068).

115399556 is a wasteful number, since it uses less digits than its factorization.

115399556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20651 (or 20649 counting only the distinct ones).

The product of its digits is 182250, while the sum is 44.

The square root of 115399556 is about 10742.4185358792. The cubic root of 115399556 is about 486.8569558817.

The spelling of 115399556 in words is "one hundred fifteen million, three hundred ninety-nine thousand, five hundred fifty-six".