80311459 has 2 divisors, whose sum is σ = 80311460. Its totient is φ = 80311458.

The previous prime is 80311379. The next prime is 80311471. The reversal of 80311459 is 95411308.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80311459 - 2¹⁵ = 80278691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80311459.

It is not a weakly prime, because it can be changed into another prime (80311159) 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 as a sum of consecutive naturals, namely, 40155729 + 40155730.

It is an arithmetic number, because the mean of its divisors is an integer number (40155730).

Almost surely, 2^80311459 is an apocalyptic number.

80311459 is a deficient number, since it is larger than the sum of its proper divisors (1).

80311459 is an equidigital number, since it uses as much as digits as its factorization.

80311459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 80311459 is about 8961.6660839377. Note that the first 3 decimals coincide. The cubic root of 80311459 is about 431.4453956246.

The spelling of 80311459 in words is "eighty million, three hundred eleven thousand, four hundred fifty-nine".