131255340 has 48 divisors (see below), whose sum is σ = 372180480. Its totient is φ = 34557120.

The previous prime is 131255339. The next prime is 131255359. The reversal of 131255340 is 43552131.

It is a self number, because there is not a number n which added to its sum of digits gives 131255340.

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, 9106 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (7753760).

Almost surely, 2^131255340 is an apocalyptic number.

131255340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131255340 is an abundant number, since it is smaller than the sum of its proper divisors (240925140).

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

131255340 is a wasteful number, since it uses less digits than its factorization.

131255340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27782 (or 27780 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 131255340 is about 11456.6722917259. The cubic root of 131255340 is about 508.2050704493.

The spelling of 131255340 in words is "one hundred thirty-one million, two hundred fifty-five thousand, three hundred forty".