142844859 has 12 divisors (see below), whose sum is σ = 209714752. Its totient is φ = 93668400.

The previous prime is 142844843. The next prime is 142844903. The reversal of 142844859 is 958448241.

142844859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142844859 - 2⁴ = 142844843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142844059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129547 + ... + 130644.

Almost surely, 2^142844859 is an apocalyptic number.

142844859 is a deficient number, since it is larger than the sum of its proper divisors (66869893).

142844859 is a wasteful number, since it uses less digits than its factorization.

142844859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260258 (or 260255 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 142844859 is about 11951.7722116848. The cubic root of 142844859 is about 522.7429746824.

The spelling of 142844859 in words is "one hundred forty-two million, eight hundred forty-four thousand, eight hundred fifty-nine".