12409243 has 8 divisors (see below), whose sum is σ = 15471360. Its totient is φ = 9669480.

The previous prime is 12409231. The next prime is 12409249. The reversal of 12409243 is 34290421.

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 12409243 - 2¹⁷ = 12278171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12409249) 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, 80503 + ... + 80656.

It is an arithmetic number, because the mean of its divisors is an integer number (1933920).

Almost surely, 2^12409243 is an apocalyptic number.

12409243 is a deficient number, since it is larger than the sum of its proper divisors (3062117).

12409243 is a wasteful number, since it uses less digits than its factorization.

12409243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161177.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 12409243 is about 3522.6755456613. The cubic root of 12409243 is about 231.5164012407.

Adding to 12409243 its reverse (34290421), we get a palindrome (46699664).

The spelling of 12409243 in words is "twelve million, four hundred nine thousand, two hundred forty-three".