859171142 has 8 divisors (see below), whose sum is σ = 1306908432. Its totient is φ = 423535000.

The previous prime is 859171133. The next prime is 859171147. The reversal of 859171142 is 241171958.

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

It is a junction number, because it is equal to n+sod(n) for n = 859171096 and 859171105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859171147) 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, 3025109 + ... + 3025392.

It is an arithmetic number, because the mean of its divisors is an integer number (163363554).

Almost surely, 2^859171142 is an apocalyptic number.

859171142 is a deficient number, since it is larger than the sum of its proper divisors (447737290).

859171142 is a wasteful number, since it uses less digits than its factorization.

859171142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050574.

The product of its digits is 20160, while the sum is 38.

The square root of 859171142 is about 29311.6212789399. The cubic root of 859171142 is about 950.6629322965.

The spelling of 859171142 in words is "eight hundred fifty-nine million, one hundred seventy-one thousand, one hundred forty-two".