521124 has 12 divisors (see below), whose sum is σ = 1215984. Its totient is φ = 173704.

The previous prime is 521119. The next prime is 521137. The reversal of 521124 is 421125.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21702 + ... + 21725.

It is an arithmetic number, because the mean of its divisors is an integer number (101332).

2⁵²¹¹²⁴ is an apocalyptic number.

It is an amenable number.

521124 is an abundant number, since it is smaller than the sum of its proper divisors (694860).

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

521124 is a wasteful number, since it uses less digits than its factorization.

521124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43434 (or 43432 counting only the distinct ones).

The product of its digits is 80, while the sum is 15.

The square root of 521124 is about 721.8891881723. The cubic root of 521124 is about 80.4724131647.

Adding to 521124 its reverse (421125), we get a palindrome (942249).

Subtracting from 521124 its reverse (421125), we obtain a palindrome (99999).

It can be divided in two parts, 52 and 1124, that added together give a triangular number (1176 = T₄₈).

The spelling of 521124 in words is "five hundred twenty-one thousand, one hundred twenty-four".