859161 has 8 divisors (see below), whose sum is σ = 1205920. Its totient is φ = 542592.

The previous prime is 859121. The next prime is 859181. The reversal of 859161 is 161958.

It is a happy number.

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

It is not a de Polignac number, because 859161 - 2¹⁵ = 826393 is a prime.

It is a Duffinian number.

859161 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 859161.

It is not an unprimeable number, because it can be changed into a prime (859121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7480 + ... + 7593.

It is an arithmetic number, because the mean of its divisors is an integer number (150740).

2⁸⁵⁹¹⁶¹ is an apocalyptic number.

It is an amenable number.

859161 is a deficient number, since it is larger than the sum of its proper divisors (346759).

859161 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 14 representation: 859161 = (185169)₁₄.

859161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15095.

The product of its digits is 2160, while the sum is 30.

The square root of 859161 is about 926.9093806840. The cubic root of 859161 is about 95.0659191613.

The spelling of 859161 in words is "eight hundred fifty-nine thousand, one hundred sixty-one".