12308819 has 2 divisors, whose sum is σ = 12308820. Its totient is φ = 12308818.

The previous prime is 12308801. The next prime is 12308831. The reversal of 12308819 is 91880321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12308819 - 2⁸ = 12308563 is a prime.

It is a super-2 number, since 2×12308819² = 303014050349522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12308839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6154409 + 6154410.

It is an arithmetic number, because the mean of its divisors is an integer number (6154410).

Almost surely, 2^12308819 is an apocalyptic number.

12308819 is a deficient number, since it is larger than the sum of its proper divisors (1).

12308819 is an equidigital number, since it uses as much as digits as its factorization.

12308819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 12308819 is about 3508.3926519134. The cubic root of 12308819 is about 230.8901797405.

The spelling of 12308819 in words is "twelve million, three hundred eight thousand, eight hundred nineteen".