131250249 has 24 divisors (see below), whose sum is σ = 210758912. Its totient is φ = 78161760.

The previous prime is 131250241. The next prime is 131250283. The reversal of 131250249 is 942052131.

It is not a de Polignac number, because 131250249 - 2³ = 131250241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131250241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14467 + ... + 21720.

Almost surely, 2^131250249 is an apocalyptic number.

It is an amenable number.

131250249 is a deficient number, since it is larger than the sum of its proper divisors (79508663).

131250249 is a wasteful number, since it uses less digits than its factorization.

131250249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36237 (or 36234 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 131250249 is about 11456.4501046354. The cubic root of 131250249 is about 508.1984997821.

The spelling of 131250249 in words is "one hundred thirty-one million, two hundred fifty thousand, two hundred forty-nine".