115061639 has 16 divisors (see below), whose sum is σ = 143759616. Its totient is φ = 89467200.

The previous prime is 115061633. The next prime is 115061641. The reversal of 115061639 is 936160511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115061639 - 2²⁰ = 114013063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115061633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42659 + ... + 45275.

It is an arithmetic number, because the mean of its divisors is an integer number (8984976).

Almost surely, 2^115061639 is an apocalyptic number.

115061639 is a deficient number, since it is larger than the sum of its proper divisors (28697977).

115061639 is a wasteful number, since it uses less digits than its factorization.

115061639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 115061639 is about 10726.6788429597. The cubic root of 115061639 is about 486.3812807834.

The spelling of 115061639 in words is "one hundred fifteen million, sixty-one thousand, six hundred thirty-nine".