203142856 has 32 divisors (see below), whose sum is σ = 440208000. Its totient is φ = 86080896.

The previous prime is 203142829. The next prime is 203142881. The reversal of 203142856 is 658241302.

203142856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15396 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (13756500).

Almost surely, 2^203142856 is an apocalyptic number.

It is an amenable number.

203142856 is an abundant number, since it is smaller than the sum of its proper divisors (237065144).

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

203142856 is a wasteful number, since it uses less digits than its factorization.

203142856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40861 (or 40857 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 203142856 is about 14252.8192298927. The cubic root of 203142856 is about 587.8508962182.

The spelling of 203142856 in words is "two hundred three million, one hundred forty-two thousand, eight hundred fifty-six".