12316409 has 8 divisors (see below), whose sum is σ = 14286528. Its totient is φ = 10398960.

The previous prime is 12316399. The next prime is 12316411. The reversal of 12316409 is 90461321.

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

It is a cyclic number.

It is not a de Polignac number, because 12316409 - 2¹⁶ = 12250873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12316429) 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, 12662 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (1785816).

Almost surely, 2^12316409 is an apocalyptic number.

It is an amenable number.

12316409 is a deficient number, since it is larger than the sum of its proper divisors (1970119).

12316409 is an equidigital number, since it uses as much as digits as its factorization.

12316409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26335.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12316409 is about 3509.4741771382. The cubic root of 12316409 is about 230.9376280073.

The spelling of 12316409 in words is "twelve million, three hundred sixteen thousand, four hundred nine".