12021473 has 2 divisors, whose sum is σ = 12021474. Its totient is φ = 12021472.

The previous prime is 12021403. The next prime is 12021491. The reversal of 12021473 is 37412021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6927424 + 5094049 = 2632^2 + 2257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021473 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010736 + 6010737.

It is an arithmetic number, because the mean of its divisors is an integer number (6010737).

Almost surely, 2^12021473 is an apocalyptic number.

It is an amenable number.

12021473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021473 is an equidigital number, since it uses as much as digits as its factorization.

12021473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12021473 is about 3467.1995904476. The cubic root of 12021473 is about 229.0793251881.

Adding to 12021473 its reverse (37412021), we get a palindrome (49433494).

The spelling of 12021473 in words is "twelve million, twenty-one thousand, four hundred seventy-three".