316491 has 12 divisors (see below), whose sum is σ = 491112. Its totient is φ = 180768.

The previous prime is 316471. The next prime is 316493. The reversal of 316491 is 194613.

It is not a de Polignac number, because 316491 - 2⁷ = 316363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (316493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 930 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (40926).

2³¹⁶⁴⁹¹ is an apocalyptic number.

316491 is a deficient number, since it is larger than the sum of its proper divisors (174621).

316491 is a wasteful number, since it uses less digits than its factorization.

316491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170 (or 2163 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 316491 is about 562.5753282895. The cubic root of 316491 is about 68.1481056770.

The spelling of 316491 in words is "three hundred sixteen thousand, four hundred ninety-one".