115538506 has 16 divisors (see below), whose sum is σ = 186674400. Its totient is φ = 53455248.

The previous prime is 115538503. The next prime is 115538537. The reversal of 115538506 is 605835511.

It is not an unprimeable number, because it can be changed into a prime (115538503) 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, 33721 + ... + 36988.

It is an arithmetic number, because the mean of its divisors is an integer number (11667150).

Almost surely, 2^115538506 is an apocalyptic number.

115538506 is a deficient number, since it is larger than the sum of its proper divisors (71135894).

115538506 is a wasteful number, since it uses less digits than its factorization.

115538506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70773.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 115538506 is about 10748.8839420658. The cubic root of 115538506 is about 487.0522819963.

The spelling of 115538506 in words is "one hundred fifteen million, five hundred thirty-eight thousand, five hundred six".