316749 has 8 divisors (see below), whose sum is σ = 444640. Its totient is φ = 200016.

The previous prime is 316717. The next prime is 316753. The reversal of 316749 is 947613.

316749 = 120² + 121² + ... + 138².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 316749 - 2⁵ = 316717 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2722 + ... + 2835.

It is an arithmetic number, because the mean of its divisors is an integer number (55580).

2³¹⁶⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

316749 is a deficient number, since it is larger than the sum of its proper divisors (127891).

316749 is a wasteful number, since it uses less digits than its factorization.

316749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579.

The product of its digits is 4536, while the sum is 30.

The square root of 316749 is about 562.8045842031. The cubic root of 316749 is about 68.1666185108.

Subtracting from 316749 its product of digits (4536), we obtain a palindrome (312213).

The spelling of 316749 in words is "three hundred sixteen thousand, seven hundred forty-nine".