131361776 has 80 divisors (see below), whose sum is σ = 317313024. Its totient is φ = 51293952.

The previous prime is 131361773. The next prime is 131361781. The reversal of 131361776 is 677163131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131361773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120305 + ... + 121391.

Almost surely, 2^131361776 is an apocalyptic number.

131361776 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 131361776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158656512).

131361776 is an abundant number, since it is smaller than the sum of its proper divisors (185951248).

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

131361776 is a wasteful number, since it uses less digits than its factorization.

131361776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1192 counting only the distinct ones).

The product of its digits is 15876, while the sum is 35.

The square root of 131361776 is about 11461.3165037879. The cubic root of 131361776 is about 508.3424025137.

The spelling of 131361776 in words is "one hundred thirty-one million, three hundred sixty-one thousand, seven hundred seventy-six".