115139807 has 2 divisors, whose sum is σ = 115139808. Its totient is φ = 115139806.

The previous prime is 115139749. The next prime is 115139813. The reversal of 115139807 is 708931511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115139807 - 2⁶ = 115139743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115139837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57569903 + 57569904.

It is an arithmetic number, because the mean of its divisors is an integer number (57569904).

Almost surely, 2^115139807 is an apocalyptic number.

115139807 is a deficient number, since it is larger than the sum of its proper divisors (1).

115139807 is an equidigital number, since it uses as much as digits as its factorization.

115139807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 115139807 is about 10730.3218497862. The cubic root of 115139807 is about 486.4913981256.

The spelling of 115139807 in words is "one hundred fifteen million, one hundred thirty-nine thousand, eight hundred seven".