316321345 has 8 divisors (see below), whose sum is σ = 379681920. Its totient is φ = 252992880.

The previous prime is 316321339. The next prime is 316321391. The reversal of 316321345 is 543123613.

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

It is a de Polignac number, because none of the positive numbers 2^k-316321345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30250 + ... + 39340.

It is an arithmetic number, because the mean of its divisors is an integer number (47460240).

Almost surely, 2^316321345 is an apocalyptic number.

It is an amenable number.

316321345 is a deficient number, since it is larger than the sum of its proper divisors (63360575).

316321345 is an equidigital number, since it uses as much as digits as its factorization.

316321345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16055.

The product of its digits is 6480, while the sum is 28.

The square root of 316321345 is about 17785.4250722326. The cubic root of 316321345 is about 681.3592656993.

Adding to 316321345 its reverse (543123613), we get a palindrome (859444958).

The spelling of 316321345 in words is "three hundred sixteen million, three hundred twenty-one thousand, three hundred forty-five".