131161519 has 12 divisors (see below), whose sum is σ = 136586736. Its totient is φ = 125944448.

The previous prime is 131161487. The next prime is 131161531. The reversal of 131161519 is 915161131.

It is not a de Polignac number, because 131161519 - 2⁵ = 131161487 is a prime.

It is a super-3 number, since 3×131161519³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131161549) 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, 220887 + ... + 221479.

It is an arithmetic number, because the mean of its divisors is an integer number (11382228).

Almost surely, 2^131161519 is an apocalyptic number.

131161519 is a deficient number, since it is larger than the sum of its proper divisors (5425217).

131161519 is an equidigital number, since it uses as much as digits as its factorization.

131161519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 885 counting only the distinct ones).

The product of its digits is 810, while the sum is 28.

The square root of 131161519 is about 11452.5769589206. The cubic root of 131161519 is about 508.0839536677.

The spelling of 131161519 in words is "one hundred thirty-one million, one hundred sixty-one thousand, five hundred nineteen".