170340091 has 4 divisors (see below), whose sum is σ = 170416672. Its totient is φ = 170263512.

The previous prime is 170340067. The next prime is 170340109. The reversal of 170340091 is 190043071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190043071 = 59 ⋅3221069.

It is a cyclic number.

It is not a de Polignac number, because 170340091 - 2⁵ = 170340059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170340011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34851 + ... + 39436.

It is an arithmetic number, because the mean of its divisors is an integer number (42604168).

Almost surely, 2^170340091 is an apocalyptic number.

170340091 is a deficient number, since it is larger than the sum of its proper divisors (76581).

170340091 is an equidigital number, since it uses as much as digits as its factorization.

170340091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76580.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 170340091 is about 13051.4401887301. The cubic root of 170340091 is about 554.3349890054.

The spelling of 170340091 in words is "one hundred seventy million, three hundred forty thousand, ninety-one".