170117137 has 2 divisors, whose sum is σ = 170117138. Its totient is φ = 170117136.

The previous prime is 170117117. The next prime is 170117179. The reversal of 170117137 is 731711071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159870736 + 10246401 = 12644^2 + 3201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170117137 is a prime.

It is not a weakly prime, because it can be changed into another prime (170117117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85058568 + 85058569.

It is an arithmetic number, because the mean of its divisors is an integer number (85058569).

Almost surely, 2^170117137 is an apocalyptic number.

It is an amenable number.

170117137 is a deficient number, since it is larger than the sum of its proper divisors (1).

170117137 is an equidigital number, since it uses as much as digits as its factorization.

170117137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1029, while the sum is 28.

The square root of 170117137 is about 13042.8960357737. The cubic root of 170117137 is about 554.0930315513.

The spelling of 170117137 in words is "one hundred seventy million, one hundred seventeen thousand, one hundred thirty-seven".