131694958404 has 45 divisors (see below), whose sum is σ = 344293712301. Its totient is φ = 43896142080.

The previous prime is 131694958361. The next prime is 131694958463. The reversal of 131694958404 is 404859496131.

The square root of 131694958404 is 362898.

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

131694958404 is a `hidden beast` number, since 1 + 3 + 16 + 9 + 49 + 584 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 85967412804 + 45727545600 = 293202^2 + 213840^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 6522084 + ... + 6542244.

Almost surely, 2^131694958404 is an apocalyptic number.

131694958404 is the 362898-th square number.

It is an amenable number.

131694958404 is an abundant number, since it is smaller than the sum of its proper divisors (212598753897).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131694958404 is an frugal number, since it uses more digits than its factorization.

131694958404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40338 (or 20166 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 131694958404 in words is "one hundred thirty-one billion, six hundred ninety-four million, nine hundred fifty-eight thousand, four hundred four".