316478903 has 4 divisors (see below), whose sum is σ = 340823448. Its totient is φ = 292134360.

The previous prime is 316478857. The next prime is 316478947. The reversal of 316478903 is 309874613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309874613 = 4159 ⋅74507.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316478903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316478203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12172253 + ... + 12172278.

It is an arithmetic number, because the mean of its divisors is an integer number (85205862).

Almost surely, 2^316478903 is an apocalyptic number.

316478903 is a deficient number, since it is larger than the sum of its proper divisors (24344545).

316478903 is a wasteful number, since it uses less digits than its factorization.

316478903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24344544.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 316478903 is about 17789.8539341952. The cubic root of 316478903 is about 681.4723740786.

The spelling of 316478903 in words is "three hundred sixteen million, four hundred seventy-eight thousand, nine hundred three".