170420233 has 2 divisors, whose sum is σ = 170420234. Its totient is φ = 170420232.

The previous prime is 170420213. The next prime is 170420267. The reversal of 170420233 is 332024071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126157824 + 44262409 = 11232^2 + 6653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170420233 is a prime.

It is not a weakly prime, because it can be changed into another prime (170420213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85210116 + 85210117.

It is an arithmetic number, because the mean of its divisors is an integer number (85210117).

Almost surely, 2^170420233 is an apocalyptic number.

It is an amenable number.

170420233 is a deficient number, since it is larger than the sum of its proper divisors (1).

170420233 is an equidigital number, since it uses as much as digits as its factorization.

170420233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 170420233 is about 13054.5100635757. The cubic root of 170420233 is about 554.4219103111.

The spelling of 170420233 in words is "one hundred seventy million, four hundred twenty thousand, two hundred thirty-three".