855505142 has 4 divisors (see below), whose sum is σ = 1283257716. Its totient is φ = 427752570.

The previous prime is 855505103. The next prime is 855505163. The reversal of 855505142 is 241505558.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213876284 + ... + 213876287.

It is an arithmetic number, because the mean of its divisors is an integer number (320814429).

Almost surely, 2^855505142 is an apocalyptic number.

855505142 is a deficient number, since it is larger than the sum of its proper divisors (427752574).

855505142 is a wasteful number, since it uses less digits than its factorization.

855505142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427752573.

The product of its (nonzero) digits is 40000, while the sum is 35.

The square root of 855505142 is about 29249.0195049338. The cubic root of 855505142 is about 949.3088757229.

The spelling of 855505142 in words is "eight hundred fifty-five million, five hundred five thousand, one hundred forty-two".