131301756 has 48 divisors (see below), whose sum is σ = 355219200. Its totient is φ = 41863536.

The previous prime is 131301743. The next prime is 131301787. The reversal of 131301756 is 657103131.

It is a super-2 number, since 2×131301756² = 34480302257367072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23946 + ... + 28913.

It is an arithmetic number, because the mean of its divisors is an integer number (7400400).

Almost surely, 2^131301756 is an apocalyptic number.

It is an amenable number.

131301756 is an abundant number, since it is smaller than the sum of its proper divisors (223917444).

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

131301756 is a wasteful number, since it uses less digits than its factorization.

131301756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52895 (or 52887 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 131301756 is about 11458.6978317783. The cubic root of 131301756 is about 508.2649691335.

Adding to 131301756 its reverse (657103131), we get a palindrome (788404887).

The spelling of 131301756 in words is "one hundred thirty-one million, three hundred one thousand, seven hundred fifty-six".