170117609 has 2 divisors, whose sum is σ = 170117610. Its totient is φ = 170117608.

The previous prime is 170117587. The next prime is 170117617. The reversal of 170117609 is 906711071.

170117609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130074025 + 40043584 = 11405^2 + 6328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170117609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (170117639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85058804 + 85058805.

It is an arithmetic number, because the mean of its divisors is an integer number (85058805).

Almost surely, 2^170117609 is an apocalyptic number.

It is an amenable number.

170117609 is a deficient number, since it is larger than the sum of its proper divisors (1).

170117609 is an equidigital number, since it uses as much as digits as its factorization.

170117609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 170117609 is about 13042.9141299021. The cubic root of 170117609 is about 554.0935440054.

The spelling of 170117609 in words is "one hundred seventy million, one hundred seventeen thousand, six hundred nine".