170132257 has 2 divisors, whose sum is σ = 170132258. Its totient is φ = 170132256.

The previous prime is 170132231. The next prime is 170132269. The reversal of 170132257 is 752231071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140090896 + 30041361 = 11836^2 + 5481^2 .

It is a cyclic number.

It is not a de Polignac number, because 170132257 - 2⁷ = 170132129 is a prime.

It is not a weakly prime, because it can be changed into another prime (170132227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85066128 + 85066129.

It is an arithmetic number, because the mean of its divisors is an integer number (85066129).

Almost surely, 2^170132257 is an apocalyptic number.

It is an amenable number.

170132257 is a deficient number, since it is larger than the sum of its proper divisors (1).

170132257 is an equidigital number, since it uses as much as digits as its factorization.

170132257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 170132257 is about 13043.4756487679. The cubic root of 170132257 is about 554.1094469824.

The spelling of 170132257 in words is "one hundred seventy million, one hundred thirty-two thousand, two hundred fifty-seven".