168676213 has 2 divisors, whose sum is σ = 168676214. Its totient is φ = 168676212.

The previous prime is 168676187. The next prime is 168676219. The reversal of 168676213 is 312676861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164019249 + 4656964 = 12807^2 + 2158^2 .

It is a cyclic number.

It is not a de Polignac number, because 168676213 - 2⁹ = 168675701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168676219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84338106 + 84338107.

It is an arithmetic number, because the mean of its divisors is an integer number (84338107).

Almost surely, 2^168676213 is an apocalyptic number.

It is an amenable number.

168676213 is a deficient number, since it is larger than the sum of its proper divisors (1).

168676213 is an equidigital number, since it uses as much as digits as its factorization.

168676213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 168676213 is about 12987.5406832857. The cubic root of 168676213 is about 552.5241697554.

The spelling of 168676213 in words is "one hundred sixty-eight million, six hundred seventy-six thousand, two hundred thirteen".