170135513 has 2 divisors, whose sum is σ = 170135514. Its totient is φ = 170135512.

The previous prime is 170135491. The next prime is 170135521. The reversal of 170135513 is 315531071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139310809 + 30824704 = 11803^2 + 5552^2 .

It is a cyclic number.

It is not a de Polignac number, because 170135513 - 2²⁴ = 153358297 is a prime.

It is not a weakly prime, because it can be changed into another prime (170135543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85067756 + 85067757.

It is an arithmetic number, because the mean of its divisors is an integer number (85067757).

Almost surely, 2^170135513 is an apocalyptic number.

It is an amenable number.

170135513 is a deficient number, since it is larger than the sum of its proper divisors (1).

170135513 is an equidigital number, since it uses as much as digits as its factorization.

170135513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 170135513 is about 13043.6004615290. The cubic root of 170135513 is about 554.1129818184.

Adding to 170135513 its reverse (315531071), we get a palindrome (485666584).

The spelling of 170135513 in words is "one hundred seventy million, one hundred thirty-five thousand, five hundred thirteen".