170650213 has 2 divisors, whose sum is σ = 170650214. Its totient is φ = 170650212.

The previous prime is 170650177. The next prime is 170650217. The reversal of 170650213 is 312056071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97752769 + 72897444 = 9887^2 + 8538^2 .

It is a cyclic number.

It is not a de Polignac number, because 170650213 - 2²¹ = 168553061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170650217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85325106 + 85325107.

It is an arithmetic number, because the mean of its divisors is an integer number (85325107).

Almost surely, 2^170650213 is an apocalyptic number.

It is an amenable number.

170650213 is a deficient number, since it is larger than the sum of its proper divisors (1).

170650213 is an equidigital number, since it uses as much as digits as its factorization.

170650213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 170650213 is about 13063.3155439192. The cubic root of 170650213 is about 554.6711933837.

The spelling of 170650213 in words is "one hundred seventy million, six hundred fifty thousand, two hundred thirteen".