170897513 has 12 divisors (see below), whose sum is σ = 177834384. Its totient is φ = 164219400.

The previous prime is 170897473. The next prime is 170897527. The reversal of 170897513 is 315798071.

170897513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 170897513 - 2⁶ = 170897449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170897113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156098 + ... + 157188.

It is an arithmetic number, because the mean of its divisors is an integer number (14819532).

Almost surely, 2^170897513 is an apocalyptic number.

It is an amenable number.

170897513 is a deficient number, since it is larger than the sum of its proper divisors (6936871).

170897513 is a wasteful number, since it uses less digits than its factorization.

170897513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 170897513 is about 13072.7775549039. Note that the first 3 decimals coincide. The cubic root of 170897513 is about 554.9390004111.

The spelling of 170897513 in words is "one hundred seventy million, eight hundred ninety-seven thousand, five hundred thirteen".