316505603 has 2 divisors, whose sum is σ = 316505604. Its totient is φ = 316505602.

The previous prime is 316505587. The next prime is 316505653. The reversal of 316505603 is 306505613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 316505603 - 2⁴ = 316505587 is a prime.

It is not a weakly prime, because it can be changed into another prime (316505653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158252801 + 158252802.

It is an arithmetic number, because the mean of its divisors is an integer number (158252802).

Almost surely, 2^316505603 is an apocalyptic number.

316505603 is a deficient number, since it is larger than the sum of its proper divisors (1).

316505603 is an equidigital number, since it uses as much as digits as its factorization.

316505603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 316505603 is about 17790.6043461148. The cubic root of 316505603 is about 681.4915378633.

The spelling of 316505603 in words is "three hundred sixteen million, five hundred five thousand, six hundred three".