12293819 has 2 divisors, whose sum is σ = 12293820. Its totient is φ = 12293818.

The previous prime is 12293797. The next prime is 12293849. The reversal of 12293819 is 91839221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12293819 is a prime.

It is a super-2 number, since 2×12293819² = 302275971209522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12293849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6146909 + 6146910.

It is an arithmetic number, because the mean of its divisors is an integer number (6146910).

Almost surely, 2^12293819 is an apocalyptic number.

12293819 is a deficient number, since it is larger than the sum of its proper divisors (1).

12293819 is an equidigital number, since it uses as much as digits as its factorization.

12293819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 12293819 is about 3506.2542691596. The cubic root of 12293819 is about 230.7963510662.

The spelling of 12293819 in words is "twelve million, two hundred ninety-three thousand, eight hundred nineteen".