17139601 has 2 divisors, whose sum is σ = 17139602. Its totient is φ = 17139600.

The previous prime is 17139593. The next prime is 17139607. The reversal of 17139601 is 10693171.

It is a Cunningham number, because it is equal to 4140²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17139600 + 1 = 4140^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 17139601 - 2³ = 17139593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17139601.

It is not a weakly prime, because it can be changed into another prime (17139607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8569800 + 8569801.

It is an arithmetic number, because the mean of its divisors is an integer number (8569801).

Almost surely, 2^17139601 is an apocalyptic number.

It is an amenable number.

17139601 is a deficient number, since it is larger than the sum of its proper divisors (1).

17139601 is an equidigital number, since it uses as much as digits as its factorization.

17139601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 17139601 is about 4140.0001207729. Note that the first 3 decimals coincide. The cubic root of 17139601 is about 257.8300715859.

The spelling of 17139601 in words is "seventeen million, one hundred thirty-nine thousand, six hundred one".