1143212459 has 2 divisors, whose sum is σ = 1143212460. Its totient is φ = 1143212458.

The previous prime is 1143212423. The next prime is 1143212467. The reversal of 1143212459 is 9542123411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143212459 - 2²⁴ = 1126435243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1143212489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571606229 + 571606230.

It is an arithmetic number, because the mean of its divisors is an integer number (571606230).

Almost surely, 2^1143212459 is an apocalyptic number.

1143212459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143212459 is an equidigital number, since it uses as much as digits as its factorization.

1143212459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 1143212459 is about 33811.4249773653. The cubic root of 1143212459 is about 1045.6242567884.

The spelling of 1143212459 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, four hundred fifty-nine".