168370613 has 2 divisors, whose sum is σ = 168370614. Its totient is φ = 168370612.

The previous prime is 168370589. The next prime is 168370621. The reversal of 168370613 is 316073861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149768644 + 18601969 = 12238^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 168370613 - 2⁸ = 168370357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168372613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84185306 + 84185307.

It is an arithmetic number, because the mean of its divisors is an integer number (84185307).

Almost surely, 2^168370613 is an apocalyptic number.

It is an amenable number.

168370613 is a deficient number, since it is larger than the sum of its proper divisors (1).

168370613 is an equidigital number, since it uses as much as digits as its factorization.

168370613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 168370613 is about 12975.7702276204. The cubic root of 168370613 is about 552.1902885312.

The spelling of 168370613 in words is "one hundred sixty-eight million, three hundred seventy thousand, six hundred thirteen".