12019 has 8 divisors (see below), whose sum is σ = 14688. Its totient is φ = 9600.

The previous prime is 12011. The next prime is 12037. The reversal of 12019 is 91021.

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

It is a cyclic number.

It is not a de Polignac number, because 12019 - 2³ = 12011 is a prime.

It is a super-2 number, since 2×12019² = 288912722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12011) 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, 69 + ... + 169.

It is an arithmetic number, because the mean of its divisors is an integer number (1836).

2¹²⁰¹⁹ is an apocalyptic number.

12019 is a deficient number, since it is larger than the sum of its proper divisors (2669).

12019 is a wasteful number, since it uses less digits than its factorization.

12019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 12019 is about 109.6311999387. The cubic root of 12019 is about 22.9063615743.

The spelling of 12019 in words is "twelve thousand, nineteen".