12019393 has 8 divisors (see below), whose sum is σ = 12310056. Its totient is φ = 11731200.

The previous prime is 12019387. The next prime is 12019411. The reversal of 12019393 is 39391021.

It can be written as a sum of positive squares in 4 ways, for example, as 4986289 + 7033104 = 2233^2 + 2652^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12019393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12019333) 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 in 7 ways as a sum of consecutive naturals, for example, 12303 + ... + 13243.

It is an arithmetic number, because the mean of its divisors is an integer number (1538757).

Almost surely, 2^12019393 is an apocalyptic number.

It is an amenable number.

12019393 is a deficient number, since it is larger than the sum of its proper divisors (290663).

12019393 is an equidigital number, since it uses as much as digits as its factorization.

12019393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 12019393 is about 3466.8996235830. The cubic root of 12019393 is about 229.0661123735.

The spelling of 12019393 in words is "twelve million, nineteen thousand, three hundred ninety-three".