80988123 has 4 divisors (see below), whose sum is σ = 107984168. Its totient is φ = 53992080.

The previous prime is 80988121. The next prime is 80988139. The reversal of 80988123 is 32188908.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80988123 - 2¹ = 80988121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80988121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13498018 + ... + 13498023.

It is an arithmetic number, because the mean of its divisors is an integer number (26996042).

Almost surely, 2^80988123 is an apocalyptic number.

80988123 is a deficient number, since it is larger than the sum of its proper divisors (26996045).

80988123 is a wasteful number, since it uses less digits than its factorization.

80988123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26996044.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 80988123 is about 8999.3401424771. The cubic root of 80988123 is about 432.6537224065.

The spelling of 80988123 in words is "eighty million, nine hundred eighty-eight thousand, one hundred twenty-three".