131452431 has 32 divisors (see below), whose sum is σ = 207790080. Its totient is φ = 73029600.

The previous prime is 131452423. The next prime is 131452441. The reversal of 131452431 is 134254131.

It is a happy number.

It is not a de Polignac number, because 131452431 - 2³ = 131452423 is a prime.

It is a super-2 number, since 2×131452431² = 34559483231619522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131452421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 16056 + ... + 22818.

It is an arithmetic number, because the mean of its divisors is an integer number (6493440).

Almost surely, 2^131452431 is an apocalyptic number.

131452431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131452431 is a deficient number, since it is larger than the sum of its proper divisors (76337649).

131452431 is a wasteful number, since it uses less digits than its factorization.

131452431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827.

The product of its digits is 1440, while the sum is 24.

The square root of 131452431 is about 11465.2706466093. The cubic root of 131452431 is about 508.4593142083.

It can be divided in two parts, 13145 and 2431, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 131452431 in words is "one hundred thirty-one million, four hundred fifty-two thousand, four hundred thirty-one".