115555939 has 8 divisors (see below), whose sum is σ = 118545408. Its totient is φ = 112588680.

The previous prime is 115555931. The next prime is 115555943. The reversal of 115555939 is 939555511.

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

It is a cyclic number.

It is not a de Polignac number, because 115555939 - 2³ = 115555931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115555895 and 115555904.

It is not an unprimeable number, because it can be changed into a prime (115555931) 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, 5254 + ... + 16084.

It is an arithmetic number, because the mean of its divisors is an integer number (14818176).

Almost surely, 2^115555939 is an apocalyptic number.

115555939 is a deficient number, since it is larger than the sum of its proper divisors (2989469).

115555939 is a wasteful number, since it uses less digits than its factorization.

115555939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105.

The product of its digits is 151875, while the sum is 43.

The square root of 115555939 is about 10749.6948328778. The cubic root of 115555939 is about 487.0767770203.

The spelling of 115555939 in words is "one hundred fifteen million, five hundred fifty-five thousand, nine hundred thirty-nine".