80512013 has 2 divisors, whose sum is σ = 80512014. Its totient is φ = 80512012.

The previous prime is 80511979. The next prime is 80512027. The reversal of 80512013 is 31021508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50951044 + 29560969 = 7138^2 + 5437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80512013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80515013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40256006 + 40256007.

It is an arithmetic number, because the mean of its divisors is an integer number (40256007).

Almost surely, 2^80512013 is an apocalyptic number.

It is an amenable number.

80512013 is a deficient number, since it is larger than the sum of its proper divisors (1).

80512013 is an equidigital number, since it uses as much as digits as its factorization.

80512013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 80512013 is about 8972.8486558060. The cubic root of 80512013 is about 431.8042326433.

The spelling of 80512013 in words is "eighty million, five hundred twelve thousand, thirteen".