68295013 has 2 divisors, whose sum is σ = 68295014. Its totient is φ = 68295012.

The previous prime is 68295011. The next prime is 68295047. The reversal of 68295013 is 31059286.

It is an a-pointer prime, because the next prime (68295047) can be obtained adding 68295013 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68178049 + 116964 = 8257^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 68295013 - 2¹ = 68295011 is a prime.

Together with 68295011, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68295013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68295011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34147506 + 34147507.

It is an arithmetic number, because the mean of its divisors is an integer number (34147507).

Almost surely, 2^68295013 is an apocalyptic number.

It is an amenable number.

68295013 is a deficient number, since it is larger than the sum of its proper divisors (1).

68295013 is an equidigital number, since it uses as much as digits as its factorization.

68295013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 68295013 is about 8264.0796825781. The cubic root of 68295013 is about 408.7549239869.

The spelling of 68295013 in words is "sixty-eight million, two hundred ninety-five thousand, thirteen".