131970746 has 12 divisors (see below), whose sum is σ = 199299438. Its totient is φ = 65540592.

The previous prime is 131970743. The next prime is 131970791. The reversal of 131970746 is 647079131.

131970746 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 3 ways, for example, as 47128225 + 84842521 = 6865^2 + 9211^2 .

It is not an unprimeable number, because it can be changed into a prime (131970743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47960 + ... + 50636.

Almost surely, 2^131970746 is an apocalyptic number.

131970746 is a deficient number, since it is larger than the sum of its proper divisors (67328692).

131970746 is an equidigital number, since it uses as much as digits as its factorization.

131970746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2836 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 131970746 is about 11487.8521055940. The cubic root of 131970746 is about 509.1267203144.

The spelling of 131970746 in words is "one hundred thirty-one million, nine hundred seventy thousand, seven hundred forty-six".