320182139 has 2 divisors, whose sum is σ = 320182140. Its totient is φ = 320182138.

The previous prime is 320182123. The next prime is 320182153. The reversal of 320182139 is 931281023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320182139 - 2⁴ = 320182123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320182739) 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 as a sum of consecutive naturals, namely, 160091069 + 160091070.

It is an arithmetic number, because the mean of its divisors is an integer number (160091070).

Almost surely, 2^320182139 is an apocalyptic number.

320182139 is a deficient number, since it is larger than the sum of its proper divisors (1).

320182139 is an equidigital number, since it uses as much as digits as its factorization.

320182139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 320182139 is about 17893.6340356005. The cubic root of 320182139 is about 684.1201262691.

The spelling of 320182139 in words is "three hundred twenty million, one hundred eighty-two thousand, one hundred thirty-nine".