80310509 has 2 divisors, whose sum is σ = 80310510. Its totient is φ = 80310508.

The previous prime is 80310493. The next prime is 80310521. The reversal of 80310509 is 90501308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67601284 + 12709225 = 8222^2 + 3565^2 .

It is a cyclic number.

It is not a de Polignac number, because 80310509 - 2⁴ = 80310493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80310539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40155254 + 40155255.

It is an arithmetic number, because the mean of its divisors is an integer number (40155255).

Almost surely, 2^80310509 is an apocalyptic number.

It is an amenable number.

80310509 is a deficient number, since it is larger than the sum of its proper divisors (1).

80310509 is an equidigital number, since it uses as much as digits as its factorization.

80310509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 80310509 is about 8961.6130802440. The cubic root of 80310509 is about 431.4436944363.

The spelling of 80310509 in words is "eighty million, three hundred ten thousand, five hundred nine".