12192019 has 8 divisors (see below), whose sum is σ = 13987328. Its totient is φ = 10410120.

The previous prime is 12192017. The next prime is 12192029. The reversal of 12192019 is 91029121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12192019 - 2¹ = 12192017 is a prime.

It is a super-2 number, since 2×12192019² = 297290654592722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12191984 and 12192002.

It is not an unprimeable number, because it can be changed into a prime (12192017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317 + ... + 5110.

It is an arithmetic number, because the mean of its divisors is an integer number (1748416).

Almost surely, 2^12192019 is an apocalyptic number.

12192019 is a deficient number, since it is larger than the sum of its proper divisors (1795309).

12192019 is an equidigital number, since it uses as much as digits as its factorization.

12192019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 12192019 is about 3491.7071755804. The cubic root of 12192019 is about 230.1575417184.

The spelling of 12192019 in words is "twelve million, one hundred ninety-two thousand, nineteen".