131658196 has 6 divisors (see below), whose sum is σ = 230401850. Its totient is φ = 65829096.

The previous prime is 131658193. The next prime is 131658199. The reversal of 131658196 is 691856131.

It is an interprime number because it is at equal distance from previous prime (131658193) and next prime (131658199).

It can be written as a sum of positive squares in only one way, i.e., 77193796 + 54464400 = 8786^2 + 7380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131658193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16457271 + ... + 16457278.

Almost surely, 2^131658196 is an apocalyptic number.

It is an amenable number.

131658196 is a deficient number, since it is larger than the sum of its proper divisors (98743654).

131658196 is a wasteful number, since it uses less digits than its factorization.

131658196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32914553 (or 32914551 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 131658196 is about 11474.2405413169. The cubic root of 131658196 is about 508.7244762594.

The spelling of 131658196 in words is "one hundred thirty-one million, six hundred fifty-eight thousand, one hundred ninety-six".