131357776 has 80 divisors (see below), whose sum is σ = 301105728. Its totient is φ = 54835200.

The previous prime is 131357747. The next prime is 131357789. The reversal of 131357776 is 677753131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128146 + ... + 129166.

Almost surely, 2^131357776 is an apocalyptic number.

131357776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131357776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150552864).

131357776 is an abundant number, since it is smaller than the sum of its proper divisors (169747952).

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

131357776 is a wasteful number, since it uses less digits than its factorization.

131357776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1094 counting only the distinct ones).

The product of its digits is 92610, while the sum is 40.

The square root of 131357776 is about 11461.1420024359. The cubic root of 131357776 is about 508.3372427422.

Subtracting from 131357776 its sum of digits (40), we obtain a triangular number (131357736 = T₁₆₂₀₈).

The spelling of 131357776 in words is "one hundred thirty-one million, three hundred fifty-seven thousand, seven hundred seventy-six".