12154339 has 2 divisors, whose sum is σ = 12154340. Its totient is φ = 12154338.

The previous prime is 12154321. The next prime is 12154349. The reversal of 12154339 is 93345121.

It is a strong prime.

It is an emirp because it is prime and its reverse (93345121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12154339 - 2¹⁹ = 11630051 is a prime.

It is not a weakly prime, because it can be changed into another prime (12154349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6077169 + 6077170.

It is an arithmetic number, because the mean of its divisors is an integer number (6077170).

Almost surely, 2^12154339 is an apocalyptic number.

12154339 is a deficient number, since it is larger than the sum of its proper divisors (1).

12154339 is an equidigital number, since it uses as much as digits as its factorization.

12154339 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12154339 is about 3486.3073587967. The cubic root of 12154339 is about 229.9201928530.

The spelling of 12154339 in words is "twelve million, one hundred fifty-four thousand, three hundred thirty-nine".