1316603 has 2 divisors, whose sum is σ = 1316604. Its totient is φ = 1316602.

The previous prime is 1316593. The next prime is 1316621. The reversal of 1316603 is 3066131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1316603 - 2⁸ = 1316347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1316303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658301 + 658302.

It is an arithmetic number, because the mean of its divisors is an integer number (658302).

2^1316603 is an apocalyptic number.

1316603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316603 is an equidigital number, since it uses as much as digits as its factorization.

1316603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1316603 is about 1147.4332224578. The cubic root of 1316603 is about 109.6019497673.

The spelling of 1316603 in words is "one million, three hundred sixteen thousand, six hundred three".