12243899 has 2 divisors, whose sum is σ = 12243900. Its totient is φ = 12243898.

The previous prime is 12243883. The next prime is 12243937. The reversal of 12243899 is 99834221.

It is an a-pointer prime, because the next prime (12243937) can be obtained adding 12243899 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12243899 - 2⁴ = 12243883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12243839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6121949 + 6121950.

It is an arithmetic number, because the mean of its divisors is an integer number (6121950).

Almost surely, 2^12243899 is an apocalyptic number.

12243899 is a deficient number, since it is larger than the sum of its proper divisors (1).

12243899 is an equidigital number, since it uses as much as digits as its factorization.

12243899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 12243899 is about 3499.1283200249. The cubic root of 12243899 is about 230.4835384903.

The spelling of 12243899 in words is "twelve million, two hundred forty-three thousand, eight hundred ninety-nine".