115220439 has 12 divisors (see below), whose sum is σ = 166557456. Its totient is φ = 76754592.

The previous prime is 115220429. The next prime is 115220447. The reversal of 115220439 is 934022511.

115220439 is a `hidden beast` number, since 1 + 1 + 5 + 220 + 439 = 666.

It is not a de Polignac number, because 115220439 - 2⁴ = 115220423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115220419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9739 + ... + 18035.

It is an arithmetic number, because the mean of its divisors is an integer number (13879788).

Almost surely, 2^115220439 is an apocalyptic number.

115220439 is a deficient number, since it is larger than the sum of its proper divisors (51337017).

115220439 is a wasteful number, since it uses less digits than its factorization.

115220439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9846 (or 9843 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 115220439 is about 10734.0783954655. The cubic root of 115220439 is about 486.6049343624.

The spelling of 115220439 in words is "one hundred fifteen million, two hundred twenty thousand, four hundred thirty-nine".