170164749 has 4 divisors (see below), whose sum is σ = 226886336. Its totient is φ = 113443164.

The previous prime is 170164733. The next prime is 170164763. The reversal of 170164749 is 947461071.

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 not a de Polignac number, because 170164749 - 2⁴ = 170164733 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 (170164789) 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, 28360789 + ... + 28360794.

It is an arithmetic number, because the mean of its divisors is an integer number (56721584).

Almost surely, 2^170164749 is an apocalyptic number.

It is an amenable number.

170164749 is a deficient number, since it is larger than the sum of its proper divisors (56721587).

170164749 is an equidigital number, since it uses as much as digits as its factorization.

170164749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56721586.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 170164749 is about 13044.7211162217. The cubic root of 170164749 is about 554.1447194982.

The spelling of 170164749 in words is "one hundred seventy million, one hundred sixty-four thousand, seven hundred forty-nine".