33168013 has 2 divisors, whose sum is σ = 33168014. Its totient is φ = 33168012.

The previous prime is 33167993. The next prime is 33168043. The reversal of 33168013 is 31086133.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33143049 + 24964 = 5757^2 + 158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33168013 is a prime.

It is a super-2 number, since 2×33168013² = 2200234172736338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33168043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16584006 + 16584007.

It is an arithmetic number, because the mean of its divisors is an integer number (16584007).

Almost surely, 2^33168013 is an apocalyptic number.

It is an amenable number.

33168013 is a deficient number, since it is larger than the sum of its proper divisors (1).

33168013 is an equidigital number, since it uses as much as digits as its factorization.

33168013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 33168013 is about 5759.1677350117. The cubic root of 33168013 is about 321.2968627603.

The spelling of 33168013 in words is "thirty-three million, one hundred sixty-eight thousand, thirteen".