855142 has 8 divisors (see below), whose sum is σ = 1288800. Its totient is φ = 425544.

The previous prime is 855131. The next prime is 855143. The reversal of 855142 is 241558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417 + ... + 1372.

It is an arithmetic number, because the mean of its divisors is an integer number (161100).

2⁸⁵⁵¹⁴² is an apocalyptic number.

855142 is a deficient number, since it is larger than the sum of its proper divisors (433658).

855142 is a wasteful number, since it uses less digits than its factorization.

855142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030.

The product of its digits is 1600, while the sum is 25.

The square root of 855142 is about 924.7388820635. The cubic root of 855142 is about 94.9174536880.

The spelling of 855142 in words is "eight hundred fifty-five thousand, one hundred forty-two".