115712739 has 16 divisors (see below), whose sum is σ = 176957440. Its totient is φ = 74652840.

The previous prime is 115712713. The next prime is 115712741. The reversal of 115712739 is 937217511.

115712739 is a `hidden beast` number, since 11 + 571 + 2 + 73 + 9 = 666.

It is not a de Polignac number, because 115712739 - 2¹¹ = 115710691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115712759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68287 + ... + 69960.

It is an arithmetic number, because the mean of its divisors is an integer number (11059840).

Almost surely, 2^115712739 is an apocalyptic number.

115712739 is a deficient number, since it is larger than the sum of its proper divisors (61244701).

115712739 is a wasteful number, since it uses less digits than its factorization.

115712739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138287 (or 138281 counting only the distinct ones).

The product of its digits is 13230, while the sum is 36.

The square root of 115712739 is about 10756.9855907684. The cubic root of 115712739 is about 487.2969852907.

The spelling of 115712739 in words is "one hundred fifteen million, seven hundred twelve thousand, seven hundred thirty-nine".