115528538 has 16 divisors (see below), whose sum is σ = 178291584. Its totient is φ = 56116320.

The previous prime is 115528519. The next prime is 115528561. The reversal of 115528538 is 835825511.

It is a super-4 number, since 4×115528538⁴ (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8393 + ... + 17363.

It is an arithmetic number, because the mean of its divisors is an integer number (11143224).

Almost surely, 2^115528538 is an apocalyptic number.

115528538 is a deficient number, since it is larger than the sum of its proper divisors (62763046).

115528538 is a wasteful number, since it uses less digits than its factorization.

115528538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9157.

The product of its digits is 48000, while the sum is 38.

The square root of 115528538 is about 10748.4202560190. The cubic root of 115528538 is about 487.0382749005.

The spelling of 115528538 in words is "one hundred fifteen million, five hundred twenty-eight thousand, five hundred thirty-eight".