312903 has 10 divisors (see below), whose sum is σ = 467544. Its totient is φ = 208548.

The previous prime is 312899. The next prime is 312929. The reversal of 312903 is 309213.

It is not a de Polignac number, because 312903 - 2² = 312899 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312903.

It is not an unprimeable number, because it can be changed into a prime (312943) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1851 + ... + 2012.

2³¹²⁹⁰³ is an apocalyptic number.

312903 is a deficient number, since it is larger than the sum of its proper divisors (154641).

312903 is an equidigital number, since it uses as much as digits as its factorization.

312903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875 (or 3866 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 312903 is about 559.3773323974. The cubic root of 312903 is about 67.8895988256.

The spelling of 312903 in words is "three hundred twelve thousand, nine hundred three".