80450139 has 16 divisors (see below), whose sum is σ = 133735680. Its totient is φ = 41792160.

The previous prime is 80450093. The next prime is 80450141. The reversal of 80450139 is 93105408.

It is not a de Polignac number, because 80450139 - 2¹¹ = 80448091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80450039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173904 + ... + 174365.

It is an arithmetic number, because the mean of its divisors is an integer number (8358480).

Almost surely, 2^80450139 is an apocalyptic number.

80450139 is a deficient number, since it is larger than the sum of its proper divisors (53285541).

80450139 is a wasteful number, since it uses less digits than its factorization.

80450139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348290.

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

The square root of 80450139 is about 8969.4001471670. The cubic root of 80450139 is about 431.6935895182.

The spelling of 80450139 in words is "eighty million, four hundred fifty thousand, one hundred thirty-nine".