80015943 has 16 divisors (see below), whose sum is σ = 122160896. Its totient is φ = 45636480.

The previous prime is 80015939. The next prime is 80015951. The reversal of 80015943 is 34951008.

It is not a de Polignac number, because 80015943 - 2² = 80015939 is a prime.

It is a super-2 number, since 2×80015943² = 12805102268358498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80015943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80015953) 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 in 15 ways as a sum of consecutive naturals, for example, 8655 + ... + 15327.

It is an arithmetic number, because the mean of its divisors is an integer number (7635056).

Almost surely, 2^80015943 is an apocalyptic number.

80015943 is a deficient number, since it is larger than the sum of its proper divisors (42144953).

80015943 is a wasteful number, since it uses less digits than its factorization.

80015943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 80015943 is about 8945.1631063944. The cubic root of 80015943 is about 430.9155595654.

The spelling of 80015943 in words is "eighty million, fifteen thousand, nine hundred forty-three".