12019873 has 2 divisors, whose sum is σ = 12019874. Its totient is φ = 12019872.

The previous prime is 12019871. The next prime is 12019879. The reversal of 12019873 is 37891021.

12019873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10093329 + 1926544 = 3177^2 + 1388^2 .

It is a cyclic number.

It is not a de Polignac number, because 12019873 - 2¹ = 12019871 is a prime.

It is a super-2 number, since 2×12019873² = 288954693872258, which contains 22 as substring.

Together with 12019871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12019871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6009936 + 6009937.

It is an arithmetic number, because the mean of its divisors is an integer number (6009937).

Almost surely, 2^12019873 is an apocalyptic number.

It is an amenable number.

12019873 is a deficient number, since it is larger than the sum of its proper divisors (1).

12019873 is an equidigital number, since it uses as much as digits as its factorization.

12019873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 12019873 is about 3466.9688490092. The cubic root of 12019873 is about 229.0691616199.

The spelling of 12019873 in words is "twelve million, nineteen thousand, eight hundred seventy-three".