1142394859 has 2 divisors, whose sum is σ = 1142394860. Its totient is φ = 1142394858.

The previous prime is 1142394853. The next prime is 1142394901. The reversal of 1142394859 is 9584932411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1142394859 - 2⁹ = 1142394347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142394853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571197429 + 571197430.

It is an arithmetic number, because the mean of its divisors is an integer number (571197430).

Almost surely, 2^1142394859 is an apocalyptic number.

1142394859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142394859 is an equidigital number, since it uses as much as digits as its factorization.

1142394859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 1142394859 is about 33799.3322271314. The cubic root of 1142394859 is about 1045.3749283080.

The spelling of 1142394859 in words is "one billion, one hundred forty-two million, three hundred ninety-four thousand, eight hundred fifty-nine".