139570139 has 2 divisors, whose sum is σ = 139570140. Its totient is φ = 139570138.

The previous prime is 139570129. The next prime is 139570159. The reversal of 139570139 is 931075931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139570139 - 2¹² = 139566043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (139570129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69785069 + 69785070.

It is an arithmetic number, because the mean of its divisors is an integer number (69785070).

Almost surely, 2^139570139 is an apocalyptic number.

139570139 is a deficient number, since it is larger than the sum of its proper divisors (1).

139570139 is an equidigital number, since it uses as much as digits as its factorization.

139570139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 139570139 is about 11813.9806585249. The cubic root of 139570139 is about 518.7174246927.

The spelling of 139570139 in words is "one hundred thirty-nine million, five hundred seventy thousand, one hundred thirty-nine".