131707515 has 16 divisors (see below), whose sum is σ = 210889728. Its totient is φ = 70191456.

The previous prime is 131707501. The next prime is 131707519. The reversal of 131707515 is 515707131.

It is a de Polignac number, because none of the positive numbers 2^k-131707515 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131707519) 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, 25654 + ... + 30356.

It is an arithmetic number, because the mean of its divisors is an integer number (13180608).

Almost surely, 2^131707515 is an apocalyptic number.

131707515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131707515 is a deficient number, since it is larger than the sum of its proper divisors (79182213).

131707515 is a wasteful number, since it uses less digits than its factorization.

131707515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6578.

The product of its (nonzero) digits is 3675, while the sum is 30.

The square root of 131707515 is about 11476.3894583619. The cubic root of 131707515 is about 508.7879908524.

The spelling of 131707515 in words is "one hundred thirty-one million, seven hundred seven thousand, five hundred fifteen".