139567117 has 2 divisors, whose sum is σ = 139567118. Its totient is φ = 139567116.

The previous prime is 139567079. The next prime is 139567147. The reversal of 139567117 is 711765931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134119561 + 5447556 = 11581^2 + 2334^2 .

It is a cyclic number.

It is not a de Polignac number, because 139567117 - 2¹⁵ = 139534349 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139567117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139567147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69783558 + 69783559.

It is an arithmetic number, because the mean of its divisors is an integer number (69783559).

Almost surely, 2^139567117 is an apocalyptic number.

It is an amenable number.

139567117 is a deficient number, since it is larger than the sum of its proper divisors (1).

139567117 is an equidigital number, since it uses as much as digits as its factorization.

139567117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 40.

The square root of 139567117 is about 11813.8527585204. The cubic root of 139567117 is about 518.7136808753.

The spelling of 139567117 in words is "one hundred thirty-nine million, five hundred sixty-seven thousand, one hundred seventeen".