80740459 has 2 divisors, whose sum is σ = 80740460. Its totient is φ = 80740458.

The previous prime is 80740453. The next prime is 80740493. The reversal of 80740459 is 95404708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80740459 - 2²¹ = 78643307 is a prime.

It is not a weakly prime, because it can be changed into another prime (80740453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40370229 + 40370230.

It is an arithmetic number, because the mean of its divisors is an integer number (40370230).

Almost surely, 2^80740459 is an apocalyptic number.

80740459 is a deficient number, since it is larger than the sum of its proper divisors (1).

80740459 is an equidigital number, since it uses as much as digits as its factorization.

80740459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 80740459 is about 8985.5694866825. The cubic root of 80740459 is about 432.2122495959.

The spelling of 80740459 in words is "eighty million, seven hundred forty thousand, four hundred fifty-nine".