131519420 has 24 divisors (see below), whose sum is σ = 276846864. Its totient is φ = 52482816.

The previous prime is 131519419. The next prime is 131519441. The reversal of 131519420 is 24915131.

It is a self number, because there is not a number n which added to its sum of digits gives 131519420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067 + ... + 16253.

It is an arithmetic number, because the mean of its divisors is an integer number (11535286).

Almost surely, 2^131519420 is an apocalyptic number.

131519420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131519420 is an abundant number, since it is smaller than the sum of its proper divisors (145327444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131519420 is a wasteful number, since it uses less digits than its factorization.

131519420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15629 (or 15627 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 131519420 is about 11468.1916621584. The cubic root of 131519420 is about 508.5456709140.

The spelling of 131519420 in words is "one hundred thirty-one million, five hundred nineteen thousand, four hundred twenty".