12145379 has 2 divisors, whose sum is σ = 12145380. Its totient is φ = 12145378.

The previous prime is 12145373. The next prime is 12145387. The reversal of 12145379 is 97354121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12145379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12145373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6072689 + 6072690.

It is an arithmetic number, because the mean of its divisors is an integer number (6072690).

Almost surely, 2^12145379 is an apocalyptic number.

12145379 is a deficient number, since it is larger than the sum of its proper divisors (1).

12145379 is an equidigital number, since it uses as much as digits as its factorization.

12145379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 12145379 is about 3485.0220946215. The cubic root of 12145379 is about 229.8636810357.

The spelling of 12145379 in words is "twelve million, one hundred forty-five thousand, three hundred seventy-nine".