316549913 has 4 divisors (see below), whose sum is σ = 319042560. Its totient is φ = 314057268.

The previous prime is 316549903. The next prime is 316549921. The reversal of 316549913 is 319945613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 316549913 - 2¹⁰ = 316548889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (316549903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246133 + ... + 1246386.

It is an arithmetic number, because the mean of its divisors is an integer number (79760640).

Almost surely, 2^316549913 is an apocalyptic number.

It is an amenable number.

316549913 is a deficient number, since it is larger than the sum of its proper divisors (2492647).

316549913 is a wasteful number, since it uses less digits than its factorization.

316549913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492646.

The product of its digits is 87480, while the sum is 41.

The square root of 316549913 is about 17791.8496227908. The cubic root of 316549913 is about 681.5233387548.

The spelling of 316549913 in words is "three hundred sixteen million, five hundred forty-nine thousand, nine hundred thirteen".