139015915417 has 2 divisors, whose sum is σ = 139015915418. Its totient is φ = 139015915416.

The previous prime is 139015915319. The next prime is 139015915469. The reversal of 139015915417 is 714519510931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113639106816 + 25376808601 = 337104^2 + 159301^2 .

It is a cyclic number.

It is not a de Polignac number, because 139015915417 - 2⁷ = 139015915289 is a prime.

It is not a weakly prime, because it can be changed into another prime (139015912417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69507957708 + 69507957709.

It is an arithmetic number, because the mean of its divisors is an integer number (69507957709).

Almost surely, 2^139015915417 is an apocalyptic number.

It is an amenable number.

139015915417 is a deficient number, since it is larger than the sum of its proper divisors (1).

139015915417 is an equidigital number, since it uses as much as digits as its factorization.

139015915417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 46.

The spelling of 139015915417 in words is "one hundred thirty-nine billion, fifteen million, nine hundred fifteen thousand, four hundred seventeen".