857130 has 16 divisors (see below), whose sum is σ = 2057184. Its totient is φ = 228560.

The previous prime is 857107. The next prime is 857137. The reversal of 857130 is 31758.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 857130.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857137) 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, 14256 + ... + 14315.

It is an arithmetic number, because the mean of its divisors is an integer number (128574).

2⁸⁵⁷¹³⁰ is an apocalyptic number.

857130 is an abundant number, since it is smaller than the sum of its proper divisors (1200054).

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

857130 is a wasteful number, since it uses less digits than its factorization.

857130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28581.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 857130 is about 925.8131560958. The cubic root of 857130 is about 94.9909501998.

Adding to 857130 its reverse (31758), we get a palindrome (888888).

The spelling of 857130 in words is "eight hundred fifty-seven thousand, one hundred thirty".