131997442692196 has 9 divisors (see below), whose sum is σ = 230995564922899. Its totient is φ = 65998709857084.

The previous prime is 131997442692173. The next prime is 131997442692209. The reversal of 131997442692196 is 691296244799131.

The square root of 131997442692196 is 11489014.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20105775 + ... + 25850281.

Almost surely, 2^{131997442692196} is an apocalyptic number.

131997442692196 is the 11489014-th square number.

It is an amenable number.

131997442692196 is a deficient number, since it is larger than the sum of its proper divisors (98998122230703).

131997442692196 is an frugal number, since it uses more digits than its factorization.

131997442692196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11489018 (or 5744509 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 73.

The spelling of 131997442692196 in words is "one hundred thirty-one trillion, nine hundred ninety-seven billion, four hundred forty-two million, six hundred ninety-two thousand, one hundred ninety-six".