68167613 has 2 divisors, whose sum is σ = 68167614. Its totient is φ = 68167612.

The previous prime is 68167601. The next prime is 68167633. The reversal of 68167613 is 31676186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65983129 + 2184484 = 8123^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 68167613 - 2¹⁴ = 68151229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68167633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34083806 + 34083807.

It is an arithmetic number, because the mean of its divisors is an integer number (34083807).

Almost surely, 2^68167613 is an apocalyptic number.

It is an amenable number.

68167613 is a deficient number, since it is larger than the sum of its proper divisors (1).

68167613 is an equidigital number, since it uses as much as digits as its factorization.

68167613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 68167613 is about 8256.3680271655. The cubic root of 68167613 is about 408.5005970127.

The spelling of 68167613 in words is "sixty-eight million, one hundred sixty-seven thousand, six hundred thirteen".