131452340 has 12 divisors (see below), whose sum is σ = 276049956. Its totient is φ = 52580928.

The previous prime is 131452327. The next prime is 131452351. The reversal of 131452340 is 43254131.

It can be written as a sum of positive squares in 2 ways, for example, as 39790864 + 91661476 = 6308^2 + 9574^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3286289 + ... + 3286328.

It is an arithmetic number, because the mean of its divisors is an integer number (23004163).

Almost surely, 2^131452340 is an apocalyptic number.

131452340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131452340 is an abundant number, since it is smaller than the sum of its proper divisors (144597616).

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

131452340 is a wasteful number, since it uses less digits than its factorization.

131452340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572626 (or 6572624 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 131452340 is about 11465.2666781022. The cubic root of 131452340 is about 508.4591968786.

The spelling of 131452340 in words is "one hundred thirty-one million, four hundred fifty-two thousand, three hundred forty".