160405139 has 2 divisors, whose sum is σ = 160405140. Its totient is φ = 160405138.

The previous prime is 160405127. The next prime is 160405159. The reversal of 160405139 is 931504061.

It is a weak prime.

It is an emirp because it is prime and its reverse (931504061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160405139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (160405109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80202569 + 80202570.

It is an arithmetic number, because the mean of its divisors is an integer number (80202570).

Almost surely, 2^160405139 is an apocalyptic number.

160405139 is a deficient number, since it is larger than the sum of its proper divisors (1).

160405139 is an equidigital number, since it uses as much as digits as its factorization.

160405139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 160405139 is about 12665.1150409303. The cubic root of 160405139 is about 543.3413522932.

The spelling of 160405139 in words is "one hundred sixty million, four hundred five thousand, one hundred thirty-nine".