12238279 has 2 divisors, whose sum is σ = 12238280. Its totient is φ = 12238278.

The previous prime is 12238253. The next prime is 12238297. The reversal of 12238279 is 97283221.

Together with next prime (12238297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12238279 - 2¹³ = 12230087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12238229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6119139 + 6119140.

It is an arithmetic number, because the mean of its divisors is an integer number (6119140).

Almost surely, 2^12238279 is an apocalyptic number.

12238279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12238279 is an equidigital number, since it uses as much as digits as its factorization.

12238279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 12238279 is about 3498.3251707067. The cubic root of 12238279 is about 230.4482687960.

The spelling of 12238279 in words is "twelve million, two hundred thirty-eight thousand, two hundred seventy-nine".