859157 has 4 divisors (see below), whose sum is σ = 925260. Its totient is φ = 793056.

The previous prime is 859121. The next prime is 859181. The reversal of 859157 is 751958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751958 = 2 ⋅375979.

It can be written as a sum of positive squares in 2 ways, for example, as 155236 + 703921 = 394^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 859157 - 2⁶ = 859093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859057) 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, 33032 + ... + 33057.

It is an arithmetic number, because the mean of its divisors is an integer number (231315).

2⁸⁵⁹¹⁵⁷ is an apocalyptic number.

It is an amenable number.

859157 is a deficient number, since it is larger than the sum of its proper divisors (66103).

859157 is a wasteful number, since it uses less digits than its factorization.

859157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66102.

The product of its digits is 12600, while the sum is 35.

The square root of 859157 is about 926.9072229733. The cubic root of 859157 is about 95.0657716281.

The spelling of 859157 in words is "eight hundred fifty-nine thousand, one hundred fifty-seven".