131158138 has 8 divisors (see below), whose sum is σ = 196808832. Its totient is φ = 65555196.

The previous prime is 131158123. The next prime is 131158141. The reversal of 131158138 is 831851131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (24601104).

Almost surely, 2^131158138 is an apocalyptic number.

131158138 is a deficient number, since it is larger than the sum of its proper divisors (65650694).

131158138 is a wasteful number, since it uses less digits than its factorization.

131158138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23876.

The product of its digits is 2880, while the sum is 31.

The square root of 131158138 is about 11452.4293492691. The cubic root of 131158138 is about 508.0795879396.

The spelling of 131158138 in words is "one hundred thirty-one million, one hundred fifty-eight thousand, one hundred thirty-eight".