139105159 has 2 divisors, whose sum is σ = 139105160. Its totient is φ = 139105158.

The previous prime is 139105157. The next prime is 139105177. The reversal of 139105159 is 951501931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139105159 - 2¹ = 139105157 is a prime.

Together with 139105157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139105151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69552579 + 69552580.

It is an arithmetic number, because the mean of its divisors is an integer number (69552580).

Almost surely, 2^139105159 is an apocalyptic number.

139105159 is a deficient number, since it is larger than the sum of its proper divisors (1).

139105159 is an equidigital number, since it uses as much as digits as its factorization.

139105159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6075, while the sum is 34.

The square root of 139105159 is about 11794.2850143618. The cubic root of 139105159 is about 518.1407455334.

The spelling of 139105159 in words is "one hundred thirty-nine million, one hundred five thousand, one hundred fifty-nine".