131155738 has 16 divisors (see below), whose sum is σ = 225483840. Its totient is φ = 56048256.

The previous prime is 131155723. The next prime is 131155751. The reversal of 131155738 is 837551131.

It is a super-2 number, since 2×131155738² = 34403655220649288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8328 + ... + 18211.

It is an arithmetic number, because the mean of its divisors is an integer number (14092740).

Almost surely, 2^131155738 is an apocalyptic number.

131155738 is a deficient number, since it is larger than the sum of its proper divisors (94328102).

131155738 is a wasteful number, since it uses less digits than its factorization.

131155738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26901.

The product of its digits is 12600, while the sum is 34.

The square root of 131155738 is about 11452.3245675278. The cubic root of 131155738 is about 508.0764888856.

The spelling of 131155738 in words is "one hundred thirty-one million, one hundred fifty-five thousand, seven hundred thirty-eight".