131340736 has 14 divisors (see below), whose sum is σ = 260629400. Its totient is φ = 65670336.

The previous prime is 131340721. The next prime is 131340743. The reversal of 131340736 is 637043131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026036 + ... + 1026163.

Almost surely, 2^131340736 is an apocalyptic number.

131340736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131340736 is a deficient number, since it is larger than the sum of its proper divisors (129288664).

131340736 is an equidigital number, since it uses as much as digits as its factorization.

131340736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052211 (or 2052201 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 131340736 is about 11460.3985969075. The cubic root of 131340736 is about 508.3152609419.

Adding to 131340736 its reverse (637043131), we get a palindrome (768383867).

The spelling of 131340736 in words is "one hundred thirty-one million, three hundred forty thousand, seven hundred thirty-six".