131670736 has 20 divisors (see below), whose sum is σ = 255428964. Its totient is φ = 65753600.

The previous prime is 131670731. The next prime is 131670751. The reversal of 131670736 is 637076131.

It is a happy number.

131670736 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 100801600 = 5556^2 + 10040^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131670731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9426 + ... + 18766.

Almost surely, 2^131670736 is an apocalyptic number.

131670736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131670736 is a deficient number, since it is larger than the sum of its proper divisors (123758228).

131670736 is an equidigital number, since it uses as much as digits as its factorization.

131670736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230 (or 10224 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 131670736 is about 11474.7869697001. The cubic root of 131670736 is about 508.7406271779.

The spelling of 131670736 in words is "one hundred thirty-one million, six hundred seventy thousand, seven hundred thirty-six".