12190019 has 2 divisors, whose sum is σ = 12190020. Its totient is φ = 12190018.

The previous prime is 12190007. The next prime is 12190033. The reversal of 12190019 is 91009121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12190019 is a prime.

It is a super-2 number, since 2×12190019² = 297193126440722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12189976 and 12190003.

It is not a weakly prime, because it can be changed into another prime (12190219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6095009 + 6095010.

It is an arithmetic number, because the mean of its divisors is an integer number (6095010).

Almost surely, 2^12190019 is an apocalyptic number.

12190019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12190019 is an equidigital number, since it uses as much as digits as its factorization.

12190019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 12190019 is about 3491.4207709756. The cubic root of 12190019 is about 230.1449558824.

The spelling of 12190019 in words is "twelve million, one hundred ninety thousand, nineteen".