131163747 has 16 divisors (see below), whose sum is σ = 205459968. Its totient is φ = 73378080.

The previous prime is 131163743. The next prime is 131163757. The reversal of 131163747 is 747361131.

It is not a de Polignac number, because 131163747 - 2² = 131163743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (131163743) 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, 152443 + ... + 153300.

It is an arithmetic number, because the mean of its divisors is an integer number (12841248).

Almost surely, 2^131163747 is an apocalyptic number.

131163747 is a deficient number, since it is larger than the sum of its proper divisors (74296221).

131163747 is a wasteful number, since it uses less digits than its factorization.

131163747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305770.

The product of its digits is 10584, while the sum is 33.

The square root of 131163747 is about 11452.6742291921. The cubic root of 131163747 is about 508.0868305396.

It can be divided in two parts, 131 and 163747, that added together give a triangular number (163878 = T₅₇₂).

The spelling of 131163747 in words is "one hundred thirty-one million, one hundred sixty-three thousand, seven hundred forty-seven".