131838215 has 16 divisors (see below), whose sum is σ = 166270368. Its totient is φ = 100227456.

The previous prime is 131838209. The next prime is 131838241. The reversal of 131838215 is 512838131.

It is a cyclic number.

It is not a de Polignac number, because 131838215 - 2⁴ = 131838199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332 + ... + 16241.

It is an arithmetic number, because the mean of its divisors is an integer number (10391898).

Almost surely, 2^131838215 is an apocalyptic number.

131838215 is a deficient number, since it is larger than the sum of its proper divisors (34432153).

131838215 is a wasteful number, since it uses less digits than its factorization.

131838215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16658.

The product of its digits is 5760, while the sum is 32.

The square root of 131838215 is about 11482.0823459859. The cubic root of 131838215 is about 508.9562338614.

The spelling of 131838215 in words is "one hundred thirty-one million, eight hundred thirty-eight thousand, two hundred fifteen".