852123 has 4 divisors (see below), whose sum is σ = 1136168. Its totient is φ = 568080.

The previous prime is 852121. The next prime is 852139. The reversal of 852123 is 321258.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 852123 - 2¹ = 852121 is a prime.

It is a super-2 number, since 2×852123² = 1452227214258, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 852123.

It is not an unprimeable number, because it can be changed into a prime (852121) 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, 142018 + ... + 142023.

It is an arithmetic number, because the mean of its divisors is an integer number (284042).

2⁸⁵²¹²³ is an apocalyptic number.

852123 is a deficient number, since it is larger than the sum of its proper divisors (284045).

852123 is a wasteful number, since it uses less digits than its factorization.

852123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284044.

The product of its digits is 480, while the sum is 21.

The square root of 852123 is about 923.1050861088. The cubic root of 852123 is about 94.8056228750.

The spelling of 852123 in words is "eight hundred fifty-two thousand, one hundred twenty-three".