12019559 has 2 divisors, whose sum is σ = 12019560. Its totient is φ = 12019558.

The previous prime is 12019531. The next prime is 12019577. The reversal of 12019559 is 95591021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12019559 - 2¹⁶ = 11954023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12019529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6009779 + 6009780.

It is an arithmetic number, because the mean of its divisors is an integer number (6009780).

Almost surely, 2^12019559 is an apocalyptic number.

12019559 is a deficient number, since it is larger than the sum of its proper divisors (1).

12019559 is an equidigital number, since it uses as much as digits as its factorization.

12019559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 12019559 is about 3466.9235641992. The cubic root of 12019559 is about 229.0671669137.

The spelling of 12019559 in words is "twelve million, nineteen thousand, five hundred fifty-nine".