115639394 has 32 divisors (see below), whose sum is σ = 190403136. Its totient is φ = 52355520.

The previous prime is 115639379. The next prime is 115639397. The reversal of 115639394 is 493936511.

It is not an unprimeable number, because it can be changed into a prime (115639397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547949 + ... + 548159.

It is an arithmetic number, because the mean of its divisors is an integer number (5950098).

Almost surely, 2^115639394 is an apocalyptic number.

115639394 is a deficient number, since it is larger than the sum of its proper divisors (74763742).

115639394 is a wasteful number, since it uses less digits than its factorization.

115639394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its digits is 87480, while the sum is 41.

The square root of 115639394 is about 10753.5758703791. The cubic root of 115639394 is about 487.1940051238.

The spelling of 115639394 in words is "one hundred fifteen million, six hundred thirty-nine thousand, three hundred ninety-four".