131156474 has 8 divisors (see below), whose sum is σ = 203081088. Its totient is φ = 63462780.

The previous prime is 131156471. The next prime is 131156489. The reversal of 131156474 is 474651131.

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

It is a super-2 number, since 2×131156474² = 34404041344225352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131156474.

It is not an unprimeable number, because it can be changed into a prime (131156471) 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, 1057652 + ... + 1057775.

It is an arithmetic number, because the mean of its divisors is an integer number (25385136).

Almost surely, 2^131156474 is an apocalyptic number.

131156474 is a deficient number, since it is larger than the sum of its proper divisors (71924614).

131156474 is a wasteful number, since it uses less digits than its factorization.

131156474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115460.

The product of its digits is 10080, while the sum is 32.

The square root of 131156474 is about 11452.3567006970. The cubic root of 131156474 is about 508.0774392662.

The spelling of 131156474 in words is "one hundred thirty-one million, one hundred fifty-six thousand, four hundred seventy-four".