80318239 has 2 divisors, whose sum is σ = 80318240. Its totient is φ = 80318238.

The previous prime is 80318237. The next prime is 80318257. The reversal of 80318239 is 93281308.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80318239 - 2¹ = 80318237 is a prime.

It is a super-2 number, since 2×80318239² = 12902039032122242, which contains 22 as substring.

Together with 80318237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80318237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40159119 + 40159120.

It is an arithmetic number, because the mean of its divisors is an integer number (40159120).

Almost surely, 2^80318239 is an apocalyptic number.

80318239 is a deficient number, since it is larger than the sum of its proper divisors (1).

80318239 is an equidigital number, since it uses as much as digits as its factorization.

80318239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 80318239 is about 8962.0443538291. The cubic root of 80318239 is about 431.4575363473.

The spelling of 80318239 in words is "eighty million, three hundred eighteen thousand, two hundred thirty-nine".