12339451 has 2 divisors, whose sum is σ = 12339452. Its totient is φ = 12339450.

The previous prime is 12339449. The next prime is 12339479. The reversal of 12339451 is 15493321.

It is an a-pointer prime, because the next prime (12339479) can be obtained adding 12339451 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (15493321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12339451 - 2¹ = 12339449 is a prime.

Together with 12339449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12334451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6169725 + 6169726.

It is an arithmetic number, because the mean of its divisors is an integer number (6169726).

Almost surely, 2^12339451 is an apocalyptic number.

12339451 is a deficient number, since it is larger than the sum of its proper divisors (1).

12339451 is an equidigital number, since it uses as much as digits as its factorization.

12339451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 12339451 is about 3512.7554711366. The cubic root of 12339451 is about 231.0815538832.

The spelling of 12339451 in words is "twelve million, three hundred thirty-nine thousand, four hundred fifty-one".