131671736 has 16 divisors (see below), whose sum is σ = 282153840. Its totient is φ = 56430720.

The previous prime is 131671723. The next prime is 131671753. The reversal of 131671736 is 637176131.

It is a super-2 number, since 2×131671736² = 34674892122507392, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 131671696 and 131671705.

It is a congruent number.

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, 1175585 + ... + 1175696.

It is an arithmetic number, because the mean of its divisors is an integer number (17634615).

Almost surely, 2^131671736 is an apocalyptic number.

It is an amenable number.

131671736 is an abundant number, since it is smaller than the sum of its proper divisors (150482104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131671736 is a wasteful number, since it uses less digits than its factorization.

131671736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351294 (or 2351290 counting only the distinct ones).

The product of its digits is 15876, while the sum is 35.

The square root of 131671736 is about 11474.8305434111. The cubic root of 131671736 is about 508.7419150858.

The spelling of 131671736 in words is "one hundred thirty-one million, six hundred seventy-one thousand, seven hundred thirty-six".