131252919 has 12 divisors (see below), whose sum is σ = 203576184. Its totient is φ = 75001584.

The previous prime is 131252911. The next prime is 131252921. The reversal of 131252919 is 919252131.

It is not a de Polignac number, because 131252919 - 2³ = 131252911 is a prime.

It is a super-2 number, since 2×131252919² = 34454657492041122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131252919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131252911) 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, 446292 + ... + 446585.

It is an arithmetic number, because the mean of its divisors is an integer number (16964682).

Almost surely, 2^131252919 is an apocalyptic number.

131252919 is a deficient number, since it is larger than the sum of its proper divisors (72323265).

131252919 is an equidigital number, since it uses as much as digits as its factorization.

131252919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892894 (or 892887 counting only the distinct ones).

The product of its digits is 4860, while the sum is 33.

The square root of 131252919 is about 11456.5666322856. The cubic root of 131252919 is about 508.2019458220.

The spelling of 131252919 in words is "one hundred thirty-one million, two hundred fifty-two thousand, nine hundred nineteen".