115310639 has 8 divisors (see below), whose sum is σ = 121478640. Its totient is φ = 109152576.

The previous prime is 115310623. The next prime is 115310651. The reversal of 115310639 is 936013511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115310639 - 2⁴ = 115310623 is a prime.

It is a super-3 number, since 3×115310639³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115310659) 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, 41147 + ... + 43859.

It is an arithmetic number, because the mean of its divisors is an integer number (15184830).

Almost surely, 2^115310639 is an apocalyptic number.

115310639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

115310639 is a deficient number, since it is larger than the sum of its proper divisors (6168001).

115310639 is a wasteful number, since it uses less digits than its factorization.

115310639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4969.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 115310639 is about 10738.2791451890. The cubic root of 115310639 is about 486.7318803479.

The spelling of 115310639 in words is "one hundred fifteen million, three hundred ten thousand, six hundred thirty-nine".