857541 has 8 divisors (see below), whose sum is σ = 1149984. Its totient is φ = 568400.

The previous prime is 857539. The next prime is 857551. The reversal of 857541 is 145758.

857541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 857541 - 2¹ = 857539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 857499 and 857508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857551) 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, 135 + ... + 1316.

It is an arithmetic number, because the mean of its divisors is an integer number (143748).

2⁸⁵⁷⁵⁴¹ is an apocalyptic number.

It is an amenable number.

857541 is a deficient number, since it is larger than the sum of its proper divisors (292443).

857541 is a wasteful number, since it uses less digits than its factorization.

857541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651.

The product of its digits is 5600, while the sum is 30.

The square root of 857541 is about 926.0350965271. The cubic root of 857541 is about 95.0061307216.

It can be divided in two parts, 85 and 7541, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 857541 in words is "eight hundred fifty-seven thousand, five hundred forty-one".