131252451 has 12 divisors (see below), whose sum is σ = 192359496. Its totient is φ = 79546720.

The previous prime is 131252447. The next prime is 131252477. The reversal of 131252451 is 154252131.

It is a happy number.

It is not a de Polignac number, because 131252451 - 2² = 131252447 is a prime.

It is a super-3 number, since 3×131252451³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131252411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180426 + ... + 181151.

It is an arithmetic number, because the mean of its divisors is an integer number (16029958).

Almost surely, 2^131252451 is an apocalyptic number.

131252451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131252451 is a deficient number, since it is larger than the sum of its proper divisors (61107045).

131252451 is a wasteful number, since it uses less digits than its factorization.

131252451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361602 (or 361591 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 131252451 is about 11456.5462073000. The cubic root of 131252451 is about 508.2013418004.

It can be divided in two parts, 13125 and 2451, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 131252451 in words is "one hundred thirty-one million, two hundred fifty-two thousand, four hundred fifty-one".