12178379 has 2 divisors, whose sum is σ = 12178380. Its totient is φ = 12178378.

The previous prime is 12178363. The next prime is 12178391. The reversal of 12178379 is 97387121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12178379 - 2⁴ = 12178363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12178279) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6089189 + 6089190.

It is an arithmetic number, because the mean of its divisors is an integer number (6089190).

Almost surely, 2^12178379 is an apocalyptic number.

12178379 is a deficient number, since it is larger than the sum of its proper divisors (1).

12178379 is an equidigital number, since it uses as much as digits as its factorization.

12178379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 38.

The square root of 12178379 is about 3489.7534296853. The cubic root of 12178379 is about 230.0716789823.

The spelling of 12178379 in words is "twelve million, one hundred seventy-eight thousand, three hundred seventy-nine".