142790859 has 6 divisors (see below), whose sum is σ = 206253476. Its totient is φ = 95193900.

The previous prime is 142790839. The next prime is 142790863. The reversal of 142790859 is 958097241.

It is not a de Polignac number, because 142790859 - 2⁵ = 142790827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142790819) 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 in 5 ways as a sum of consecutive naturals, for example, 7932817 + ... + 7932834.

Almost surely, 2^142790859 is an apocalyptic number.

142790859 is a deficient number, since it is larger than the sum of its proper divisors (63462617).

142790859 is a wasteful number, since it uses less digits than its factorization.

142790859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15865657 (or 15865654 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 142790859 is about 11949.5129189436. The cubic root of 142790859 is about 522.6770951012.

The spelling of 142790859 in words is "one hundred forty-two million, seven hundred ninety thousand, eight hundred fifty-nine".