131308715 has 16 divisors (see below), whose sum is σ = 171217920. Its totient is φ = 96305760.

The previous prime is 131308711. The next prime is 131308763. The reversal of 131308715 is 517803131.

It is not a de Polignac number, because 131308715 - 2² = 131308711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131308711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19349 + ... + 25238.

It is an arithmetic number, because the mean of its divisors is an integer number (10701120).

Almost surely, 2^131308715 is an apocalyptic number.

131308715 is a deficient number, since it is larger than the sum of its proper divisors (39909205).

131308715 is a wasteful number, since it uses less digits than its factorization.

131308715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44642.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 131308715 is about 11459.0014835500. The cubic root of 131308715 is about 508.2739483316.

The spelling of 131308715 in words is "one hundred thirty-one million, three hundred eight thousand, seven hundred fifteen".