131374251 has 16 divisors (see below), whose sum is σ = 195829120. Its totient is φ = 87042600.

The previous prime is 131374219. The next prime is 131374253. The reversal of 131374251 is 152473131.

It is not a de Polignac number, because 131374251 - 2⁵ = 131374219 is a prime.

It is a super-2 number, since 2×131374251² = 34518387651622002, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131374253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10525 + ... + 19326.

It is an arithmetic number, because the mean of its divisors is an integer number (12239320).

Almost surely, 2^131374251 is an apocalyptic number.

131374251 is a deficient number, since it is larger than the sum of its proper divisors (64454869).

131374251 is a wasteful number, since it uses less digits than its factorization.

131374251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30023 (or 30017 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 131374251 is about 11461.8607128162. The cubic root of 131374251 is about 508.3584938784.

The spelling of 131374251 in words is "one hundred thirty-one million, three hundred seventy-four thousand, two hundred fifty-one".