139116617 has 2 divisors, whose sum is σ = 139116618. Its totient is φ = 139116616.

The previous prime is 139116599. The next prime is 139116643. The reversal of 139116617 is 716611931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116229961 + 22886656 = 10781^2 + 4784^2 .

It is a cyclic number.

It is not a de Polignac number, because 139116617 - 2⁶ = 139116553 is a prime.

It is not a weakly prime, because it can be changed into another prime (139116647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69558308 + 69558309.

It is an arithmetic number, because the mean of its divisors is an integer number (69558309).

Almost surely, 2^139116617 is an apocalyptic number.

It is an amenable number.

139116617 is a deficient number, since it is larger than the sum of its proper divisors (1).

139116617 is an equidigital number, since it uses as much as digits as its factorization.

139116617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 35.

The square root of 139116617 is about 11794.7707480900. The cubic root of 139116617 is about 518.1549714464.

The spelling of 139116617 in words is "one hundred thirty-nine million, one hundred sixteen thousand, six hundred seventeen".