12316005 has 48 divisors (see below), whose sum is σ = 23652720. Its totient is φ = 5889024.

The previous prime is 12315991. The next prime is 12316033. The reversal of 12316005 is 50061321.

12316005 = 241² + 242² + ... + 370².

It can be written as a sum of positive squares in 8 ways, for example, as 599076 + 11716929 = 774^2 + 3423^2 .

It is not a de Polignac number, because 12316005 - 2⁹ = 12315493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21361 + ... + 21929.

It is an arithmetic number, because the mean of its divisors is an integer number (492765).

Almost surely, 2^12316005 is an apocalyptic number.

12316005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12316005 is a deficient number, since it is larger than the sum of its proper divisors (11336715).

12316005 is a wasteful number, since it uses less digits than its factorization.

12316005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 12316005 is about 3509.4166181860. The cubic root of 12316005 is about 230.9351029254.

Adding to 12316005 its reverse (50061321), we get a palindrome (62377326).

The spelling of 12316005 in words is "twelve million, three hundred sixteen thousand, five".