131310238 has 8 divisors (see below), whose sum is σ = 197020800. Its totient is φ = 65636640.

The previous prime is 131310217. The next prime is 131310239. The reversal of 131310238 is 832013131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131310239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2758 + ... + 16438.

It is an arithmetic number, because the mean of its divisors is an integer number (24627600).

Almost surely, 2^131310238 is an apocalyptic number.

131310238 is a deficient number, since it is larger than the sum of its proper divisors (65710562).

131310238 is a wasteful number, since it uses less digits than its factorization.

131310238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18482.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 131310238 is about 11459.0679376640. The cubic root of 131310238 is about 508.2759134163.

Adding to 131310238 its reverse (832013131), we get a palindrome (963323369).

The spelling of 131310238 in words is "one hundred thirty-one million, three hundred ten thousand, two hundred thirty-eight".