170239117 has 2 divisors, whose sum is σ = 170239118. Its totient is φ = 170239116.

The previous prime is 170239099. The next prime is 170239151. The reversal of 170239117 is 711932071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119814916 + 50424201 = 10946^2 + 7101^2 .

It is a cyclic number.

It is not a de Polignac number, because 170239117 - 2⁷ = 170238989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170239177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85119558 + 85119559.

It is an arithmetic number, because the mean of its divisors is an integer number (85119559).

Almost surely, 2^170239117 is an apocalyptic number.

It is an amenable number.

170239117 is a deficient number, since it is larger than the sum of its proper divisors (1).

170239117 is an equidigital number, since it uses as much as digits as its factorization.

170239117 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 31.

The square root of 170239117 is about 13047.5713065689. The cubic root of 170239117 is about 554.2254346731.

The spelling of 170239117 in words is "one hundred seventy million, two hundred thirty-nine thousand, one hundred seventeen".