123160139 has 2 divisors, whose sum is σ = 123160140. Its totient is φ = 123160138.

The previous prime is 123160097. The next prime is 123160153. The reversal of 123160139 is 931061321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123160139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123160039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61580069 + 61580070.

It is an arithmetic number, because the mean of its divisors is an integer number (61580070).

Almost surely, 2^123160139 is an apocalyptic number.

123160139 is a deficient number, since it is larger than the sum of its proper divisors (1).

123160139 is an equidigital number, since it uses as much as digits as its factorization.

123160139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 123160139 is about 11097.7537817344. The cubic root of 123160139 is about 497.5347167343.

The spelling of 123160139 in words is "one hundred twenty-three million, one hundred sixty thousand, one hundred thirty-nine".