857136 has 40 divisors (see below), whose sum is σ = 2531584. Its totient is φ = 244800.

The previous prime is 857107. The next prime is 857137. The reversal of 857136 is 631758.

It is not an unprimeable number, because it can be changed into a prime (857137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940 + ... + 1611.

2⁸⁵⁷¹³⁶ is an apocalyptic number.

It is an amenable number.

857136 is an abundant number, since it is smaller than the sum of its proper divisors (1674448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857136 is a wasteful number, since it uses less digits than its factorization.

857136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2563 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 857136 is about 925.8163964847. The cubic root of 857136 is about 94.9911718482.

The spelling of 857136 in words is "eight hundred fifty-seven thousand, one hundred thirty-six".