131998495 has 16 divisors (see below), whose sum is σ = 165722112. Its totient is φ = 100740640.

The previous prime is 131998487. The next prime is 131998507. The reversal of 131998495 is 594899131.

It is not a de Polignac number, because 131998495 - 2³ = 131998487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49650 + ... + 52240.

It is an arithmetic number, because the mean of its divisors is an integer number (10357632).

Almost surely, 2^131998495 is an apocalyptic number.

131998495 is a deficient number, since it is larger than the sum of its proper divisors (33723617).

131998495 is a wasteful number, since it uses less digits than its factorization.

131998495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062.

The product of its digits is 349920, while the sum is 49.

The square root of 131998495 is about 11489.0597961713. The cubic root of 131998495 is about 509.1624018770.

The spelling of 131998495 in words is "one hundred thirty-one million, nine hundred ninety-eight thousand, four hundred ninety-five".