12354919 has 2 divisors, whose sum is σ = 12354920. Its totient is φ = 12354918.

The previous prime is 12354913. The next prime is 12354943. The reversal of 12354919 is 91945321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12354919 - 2⁷ = 12354791 is a prime.

It is a super-2 number, since 2×12354919² = 305288046993122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12354913) 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, 6177459 + 6177460.

It is an arithmetic number, because the mean of its divisors is an integer number (6177460).

Almost surely, 2^12354919 is an apocalyptic number.

12354919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12354919 is an equidigital number, since it uses as much as digits as its factorization.

12354919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 12354919 is about 3514.9564719922. The cubic root of 12354919 is about 231.1780702511.

The spelling of 12354919 in words is "twelve million, three hundred fifty-four thousand, nine hundred nineteen".