170322961 has 2 divisors, whose sum is σ = 170322962. Its totient is φ = 170322960.

The previous prime is 170322953. The next prime is 170322967. The reversal of 170322961 is 169223071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155151936 + 15171025 = 12456^2 + 3895^2 .

It is a cyclic number.

It is not a de Polignac number, because 170322961 - 2³ = 170322953 is a prime.

It is a super-2 number, since 2×170322961² = 58019822087615042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (170322967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85161480 + 85161481.

It is an arithmetic number, because the mean of its divisors is an integer number (85161481).

Almost surely, 2^170322961 is an apocalyptic number.

It is an amenable number.

170322961 is a deficient number, since it is larger than the sum of its proper divisors (1).

170322961 is an equidigital number, since it uses as much as digits as its factorization.

170322961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 170322961 is about 13050.7839228148. The cubic root of 170322961 is about 554.3164064223.

The spelling of 170322961 in words is "one hundred seventy million, three hundred twenty-two thousand, nine hundred sixty-one".