170256423 has 8 divisors (see below), whose sum is σ = 227225200. Its totient is φ = 113395968.

The previous prime is 170256421. The next prime is 170256431. The reversal of 170256423 is 324652071.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 170256423 - 2¹ = 170256421 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 (170256421) 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 in 7 ways as a sum of consecutive naturals, for example, 23338 + ... + 29751.

It is an arithmetic number, because the mean of its divisors is an integer number (28403150).

Almost surely, 2^170256423 is an apocalyptic number.

170256423 is a deficient number, since it is larger than the sum of its proper divisors (56968777).

170256423 is a wasteful number, since it uses less digits than its factorization.

170256423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54161.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 170256423 is about 13048.2344782733. The cubic root of 170256423 is about 554.2442143374.

The spelling of 170256423 in words is "one hundred seventy million, two hundred fifty-six thousand, four hundred twenty-three".