131243900176 has 75 divisors (see below), whose sum is σ = 266304452293. Its totient is φ = 62659256960.

The previous prime is 131243900171. The next prime is 131243900189. The reversal of 131243900176 is 671009342131.

The square root of 131243900176 is 362276.

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

It can be written as a sum of positive squares in only one way, i.e., 6324066576 + 124919833600 = 79524^2 + 353440^2 .

It is a super-2 number, since 2×131243900176² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131243900171) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2792423385 + ... + 2792423431.

Almost surely, 2^131243900176 is an apocalyptic number.

131243900176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

131243900176 is the 362276-th square number.

It is an amenable number.

131243900176 is an abundant number, since it is smaller than the sum of its proper divisors (135060552117).

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

131243900176 is an frugal number, since it uses more digits than its factorization.

131243900176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 131243900176 in words is "one hundred thirty-one billion, two hundred forty-three million, nine hundred thousand, one hundred seventy-six".