131550251 has 12 divisors (see below), whose sum is σ = 153407520. Its totient is φ = 112477680.

The previous prime is 131550241. The next prime is 131550253. The reversal of 131550251 is 152055131.

It is a happy number.

It is not a de Polignac number, because 131550251 - 2¹⁰ = 131549227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131550253) 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, 18005 + ... + 24233.

It is an arithmetic number, because the mean of its divisors is an integer number (12783960).

Almost surely, 2^131550251 is an apocalyptic number.

131550251 is a deficient number, since it is larger than the sum of its proper divisors (21857269).

131550251 is an equidigital number, since it uses as much as digits as its factorization.

131550251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 131550251 is about 11469.5357796207. The cubic root of 131550251 is about 508.5854058484.

The spelling of 131550251 in words is "one hundred thirty-one million, five hundred fifty thousand, two hundred fifty-one".