131253250 has 16 divisors (see below), whose sum is σ = 245706552. Its totient is φ = 52501200.

The previous prime is 131253247. The next prime is 131253263. The reversal of 131253250 is 52352131.

It can be written as a sum of positive squares in 4 ways, for example, as 52983841 + 78269409 = 7279^2 + 8847^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262257 + ... + 262756.

Almost surely, 2^131253250 is an apocalyptic number.

131253250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131253250 is a deficient number, since it is larger than the sum of its proper divisors (114453302).

131253250 is an equidigital number, since it uses as much as digits as its factorization.

131253250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525030 (or 525020 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 131253250 is about 11456.5810781402. The cubic root of 131253250 is about 508.2023730244.

The spelling of 131253250 in words is "one hundred thirty-one million, two hundred fifty-three thousand, two hundred fifty".