858853142 has 16 divisors (see below), whose sum is σ = 1475524512. Its totient is φ = 367278720.

The previous prime is 858853129. The next prime is 858853169. The reversal of 858853142 is 241358858.

It is a junction number, because it is equal to n+sod(n) for n = 858853093 and 858853102.

It is a congruent number.

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, 60083 + ... + 72990.

It is an arithmetic number, because the mean of its divisors is an integer number (92220282).

Almost surely, 2^858853142 is an apocalyptic number.

858853142 is a deficient number, since it is larger than the sum of its proper divisors (616671370).

858853142 is a wasteful number, since it uses less digits than its factorization.

858853142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133543.

The product of its digits is 307200, while the sum is 44.

The square root of 858853142 is about 29306.1963072658. The cubic root of 858853142 is about 950.5456300491.

The spelling of 858853142 in words is "eight hundred fifty-eight million, eight hundred fifty-three thousand, one hundred forty-two".