131625243 has 30 divisors (see below), whose sum is σ = 202253436. Its totient is φ = 85306608.

The previous prime is 131625223. The next prime is 131625253. The reversal of 131625243 is 342526131.

131625243 is a `hidden beast` number, since 1 + 31 + 625 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 131625243 - 2¹⁶ = 131559707 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (131625223) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 110296 + ... + 111482.

Almost surely, 2^131625243 is an apocalyptic number.

131625243 is a deficient number, since it is larger than the sum of its proper divisors (70628193).

131625243 is an equidigital number, since it uses as much as digits as its factorization.

131625243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1227 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 131625243 is about 11472.8044958502. The cubic root of 131625243 is about 508.6820294868.

The spelling of 131625243 in words is "one hundred thirty-one million, six hundred twenty-five thousand, two hundred forty-three".