68315603 has 2 divisors, whose sum is σ = 68315604. Its totient is φ = 68315602.

The previous prime is 68315593. The next prime is 68315627. The reversal of 68315603 is 30651386.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68315603 is a prime.

It is a super-2 number, since 2×68315603² = 9334043226507218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68315603.

It is not a weakly prime, because it can be changed into another prime (68315683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34157801 + 34157802.

It is an arithmetic number, because the mean of its divisors is an integer number (34157802).

Almost surely, 2^68315603 is an apocalyptic number.

68315603 is a deficient number, since it is larger than the sum of its proper divisors (1).

68315603 is an equidigital number, since it uses as much as digits as its factorization.

68315603 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 32.

The square root of 68315603 is about 8265.3253414491. The cubic root of 68315603 is about 408.7959978411.

Adding to 68315603 its reverse (30651386), we get a palindrome (98966989).

The spelling of 68315603 in words is "sixty-eight million, three hundred fifteen thousand, six hundred three".