131608131 has 16 divisors (see below), whose sum is σ = 179670528. Its totient is φ = 85652000.

The previous prime is 131608121. The next prime is 131608159. The reversal of 131608131 is 131806131.

It is a cyclic number.

It is not a de Polignac number, because 131608131 - 2¹⁰ = 131607107 is a prime.

It is a super-2 number, since 2×131608131² = 34641400290626322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131608111) 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, 68281 + ... + 70181.

It is an arithmetic number, because the mean of its divisors is an integer number (11229408).

Almost surely, 2^131608131 is an apocalyptic number.

131608131 is a deficient number, since it is larger than the sum of its proper divisors (48062397).

131608131 is a wasteful number, since it uses less digits than its factorization.

131608131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 131608131 is about 11472.0587080088. The cubic root of 131608131 is about 508.6599847181.

The spelling of 131608131 in words is "one hundred thirty-one million, six hundred eight thousand, one hundred thirty-one".