170045157 has 4 divisors (see below), whose sum is σ = 226726880. Its totient is φ = 113363436.

The previous prime is 170045131. The next prime is 170045173. The reversal of 170045157 is 751540071.

170045157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 751540071 = 3 ⋅250513357.

It is not a de Polignac number, because 170045157 - 2⁶ = 170045093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170045957) 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, 28340857 + ... + 28340862.

It is an arithmetic number, because the mean of its divisors is an integer number (56681720).

Almost surely, 2^170045157 is an apocalyptic number.

It is an amenable number.

170045157 is a deficient number, since it is larger than the sum of its proper divisors (56681723).

170045157 is an equidigital number, since it uses as much as digits as its factorization.

170045157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56681722.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 170045157 is about 13040.1363873236. The cubic root of 170045157 is about 554.0148712052.

The spelling of 170045157 in words is "one hundred seventy million, forty-five thousand, one hundred fifty-seven".