316213439 has 4 divisors (see below), whose sum is σ = 317075424. Its totient is φ = 315351456.

The previous prime is 316213421. The next prime is 316213441. The reversal of 316213439 is 934312613.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316213439 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 (316213459) 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, 430442 + ... + 431175.

It is an arithmetic number, because the mean of its divisors is an integer number (79268856).

Almost surely, 2^316213439 is an apocalyptic number.

316213439 is a deficient number, since it is larger than the sum of its proper divisors (861985).

316213439 is an equidigital number, since it uses as much as digits as its factorization.

316213439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861984.

The product of its digits is 11664, while the sum is 32.

The square root of 316213439 is about 17782.3912621447. The cubic root of 316213439 is about 681.2817800285.

The spelling of 316213439 in words is "three hundred sixteen million, two hundred thirteen thousand, four hundred thirty-nine".