170645113 has 4 divisors (see below), whose sum is σ = 174613648. Its totient is φ = 166676580.

The previous prime is 170645093. The next prime is 170645141. The reversal of 170645113 is 311546071.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170645113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170648113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1984203 + ... + 1984288.

It is an arithmetic number, because the mean of its divisors is an integer number (43653412).

Almost surely, 2^170645113 is an apocalyptic number.

It is an amenable number.

170645113 is a deficient number, since it is larger than the sum of its proper divisors (3968535).

170645113 is an equidigital number, since it uses as much as digits as its factorization.

170645113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968534.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 170645113 is about 13063.1203393370. The cubic root of 170645113 is about 554.6656677509.

The spelling of 170645113 in words is "one hundred seventy million, six hundred forty-five thousand, one hundred thirteen".