12071489 has 2 divisors, whose sum is σ = 12071490. Its totient is φ = 12071488.

The previous prime is 12071467. The next prime is 12071503. The reversal of 12071489 is 98417021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7745089 + 4326400 = 2783^2 + 2080^2 .

It is an emirp because it is prime and its reverse (98417021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12071489 - 2⁸ = 12071233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12071429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6035744 + 6035745.

It is an arithmetic number, because the mean of its divisors is an integer number (6035745).

Almost surely, 2^12071489 is an apocalyptic number.

It is an amenable number.

12071489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12071489 is an equidigital number, since it uses as much as digits as its factorization.

12071489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12071489 is about 3474.4048411203. The cubic root of 12071489 is about 229.3965846487.

The spelling of 12071489 in words is "twelve million, seventy-one thousand, four hundred eighty-nine".