80631413 has 2 divisors, whose sum is σ = 80631414. Its totient is φ = 80631412.

The previous prime is 80631409. The next prime is 80631427. The reversal of 80631413 is 31413608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47430769 + 33200644 = 6887^2 + 5762^2 .

It is a cyclic number.

It is not a de Polignac number, because 80631413 - 2² = 80631409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80631013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40315706 + 40315707.

It is an arithmetic number, because the mean of its divisors is an integer number (40315707).

Almost surely, 2^80631413 is an apocalyptic number.

It is an amenable number.

80631413 is a deficient number, since it is larger than the sum of its proper divisors (1).

80631413 is an equidigital number, since it uses as much as digits as its factorization.

80631413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 80631413 is about 8979.4995963027. The cubic root of 80631413 is about 432.0175836607.

The spelling of 80631413 in words is "eighty million, six hundred thirty-one thousand, four hundred thirteen".