131516735 has 12 divisors (see below), whose sum is σ = 183586968. Its totient is φ = 90182736.

The previous prime is 131516731. The next prime is 131516753. The reversal of 131516735 is 537615131.

It is not a de Polignac number, because 131516735 - 2² = 131516731 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131516731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268157 + ... + 268646.

It is an arithmetic number, because the mean of its divisors is an integer number (15298914).

Almost surely, 2^131516735 is an apocalyptic number.

131516735 is a deficient number, since it is larger than the sum of its proper divisors (52070233).

131516735 is an equidigital number, since it uses as much as digits as its factorization.

131516735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536822 (or 536815 counting only the distinct ones).

The product of its digits is 9450, while the sum is 32.

The square root of 131516735 is about 11468.0745986412. The cubic root of 131516735 is about 508.5422101971.

The spelling of 131516735 in words is "one hundred thirty-one million, five hundred sixteen thousand, seven hundred thirty-five".