80131736 has 24 divisors (see below), whose sum is σ = 152469660. Its totient is φ = 39481680.

The previous prime is 80131717. The next prime is 80131739. The reversal of 80131736 is 63713108.

It is a super-2 number, since 2×80131736² = 12842190228747392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80131699 and 80131708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80131739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39335 + ... + 41321.

Almost surely, 2^80131736 is an apocalyptic number.

It is an amenable number.

80131736 is a deficient number, since it is larger than the sum of its proper divisors (72337924).

80131736 is a wasteful number, since it uses less digits than its factorization.

80131736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 80131736 is about 8951.6331470855. The cubic root of 80131736 is about 431.1233221428.

The spelling of 80131736 in words is "eighty million, one hundred thirty-one thousand, seven hundred thirty-six".