80443155 has 32 divisors (see below), whose sum is σ = 139487040. Its totient is φ = 39586560.

The previous prime is 80443151. The next prime is 80443157. The reversal of 80443155 is 55134408.

It is not a de Polignac number, because 80443155 - 2² = 80443151 is a prime.

It is a super-2 number, since 2×80443155² = 12942202372708050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80443151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31735 + ... + 34175.

It is an arithmetic number, because the mean of its divisors is an integer number (4358970).

Almost surely, 2^80443155 is an apocalyptic number.

80443155 is a deficient number, since it is larger than the sum of its proper divisors (59043885).

80443155 is a wasteful number, since it uses less digits than its factorization.

80443155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488 (or 2462 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 80443155 is about 8969.0108150230. The cubic root of 80443155 is about 431.6810971624.

The spelling of 80443155 in words is "eighty million, four hundred forty-three thousand, one hundred fifty-five".