80371139 has 2 divisors, whose sum is σ = 80371140. Its totient is φ = 80371138.

The previous prime is 80371117. The next prime is 80371163. The reversal of 80371139 is 93117308.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80371139 is a prime.

It is not a weakly prime, because it can be changed into another prime (80371169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40185569 + 40185570.

It is an arithmetic number, because the mean of its divisors is an integer number (40185570).

Almost surely, 2^80371139 is an apocalyptic number.

80371139 is a deficient number, since it is larger than the sum of its proper divisors (1).

80371139 is an equidigital number, since it uses as much as digits as its factorization.

80371139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 80371139 is about 8964.9952035682. The cubic root of 80371139 is about 431.5522391816.

The spelling of 80371139 in words is "eighty million, three hundred seventy-one thousand, one hundred thirty-nine".