170274421 has 4 divisors (see below), whose sum is σ = 170738752. Its totient is φ = 169810092.

The previous prime is 170274337. The next prime is 170274439. The reversal of 170274421 is 124472071.

170274421 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: 124472071 = 181 ⋅687691.

It is a cyclic number.

It is not a de Polignac number, because 170274421 - 2²⁷ = 36056693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 170274421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170274521) 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, 231615 + ... + 232348.

It is an arithmetic number, because the mean of its divisors is an integer number (42684688).

Almost surely, 2^170274421 is an apocalyptic number.

It is an amenable number.

170274421 is a deficient number, since it is larger than the sum of its proper divisors (464331).

170274421 is an equidigital number, since it uses as much as digits as its factorization.

170274421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464330.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 170274421 is about 13048.9241318969. The cubic root of 170274421 is about 554.2637435778.

The spelling of 170274421 in words is "one hundred seventy million, two hundred seventy-four thousand, four hundred twenty-one".