131900019 has 16 divisors (see below), whose sum is σ = 179813760. Its totient is φ = 85979520.

The previous prime is 131900003. The next prime is 131900039. The reversal of 131900019 is 910009131.

It is not a de Polignac number, because 131900019 - 2⁴ = 131900003 is a prime.

It is a super-2 number, since 2×131900019² = 34795230024400722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131900039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25579 + ... + 30299.

It is an arithmetic number, because the mean of its divisors is an integer number (11238360).

Almost surely, 2^131900019 is an apocalyptic number.

131900019 is a deficient number, since it is larger than the sum of its proper divisors (47913741).

131900019 is a wasteful number, since it uses less digits than its factorization.

131900019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 131900019 is about 11484.7733543157. The cubic root of 131900019 is about 509.0357520726.

The spelling of 131900019 in words is "one hundred thirty-one million, nine hundred thousand, nineteen".