142856856 has 24 divisors (see below), whose sum is σ = 386904180. Its totient is φ = 47618928.

The previous prime is 142856851. The next prime is 142856869. The reversal of 142856856 is 658658241.

142856856 is a `hidden beast` number, since 14 + 28 + 568 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142856851) 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, 991990 + ... + 992133.

Almost surely, 2^142856856 is an apocalyptic number.

It is an amenable number.

142856856 is an abundant number, since it is smaller than the sum of its proper divisors (244047324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142856856 is a wasteful number, since it uses less digits than its factorization.

142856856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984135 (or 1984128 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 142856856 is about 11952.2740932427. The cubic root of 142856856 is about 522.7576086751.

The spelling of 142856856 in words is "one hundred forty-two million, eight hundred fifty-six thousand, eight hundred fifty-six".