313603 has 2 divisors, whose sum is σ = 313604. Its totient is φ = 313602.

The previous prime is 313597. The next prime is 313613. The reversal of 313603 is 306313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313603 - 2⁵ = 313571 is a prime.

It is not a weakly prime, because it can be changed into another prime (313613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156801 + 156802.

It is an arithmetic number, because the mean of its divisors is an integer number (156802).

2³¹³⁶⁰³ is an apocalyptic number.

313603 is a deficient number, since it is larger than the sum of its proper divisors (1).

313603 is an equidigital number, since it uses as much as digits as its factorization.

313603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 313603 is about 560.0026785650. The cubic root of 313603 is about 67.9401867343.

Adding to 313603 its reverse (306313), we get a palindrome (619916).

The spelling of 313603 in words is "three hundred thirteen thousand, six hundred three".