170970169 has 2 divisors, whose sum is σ = 170970170. Its totient is φ = 170970168.

The previous prime is 170970143. The next prime is 170970179. The reversal of 170970169 is 961079071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127238400 + 43731769 = 11280^2 + 6613^2 .

It is a cyclic number.

It is not a de Polignac number, because 170970169 - 2¹³ = 170961977 is a prime.

It is a super-2 number, since 2×170970169² = 58461597375777122, which contains 22 as substring.

It is a Chen prime.

It is equal to p_9554287 and since 170970169 and 9554287 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (170970179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85485084 + 85485085.

It is an arithmetic number, because the mean of its divisors is an integer number (85485085).

Almost surely, 2^170970169 is an apocalyptic number.

It is an amenable number.

170970169 is a deficient number, since it is larger than the sum of its proper divisors (1).

170970169 is an equidigital number, since it uses as much as digits as its factorization.

170970169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 170970169 is about 13075.5561640796. The cubic root of 170970169 is about 555.0176322077.

The spelling of 170970169 in words is "one hundred seventy million, nine hundred seventy thousand, one hundred sixty-nine".