524139 has 16 divisors (see below), whose sum is σ = 871680. Its totient is φ = 272160.

The previous prime is 524123. The next prime is 524149. The reversal of 524139 is 931425.

It is not a de Polignac number, because 524139 - 2⁴ = 524123 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (54480).

2⁵²⁴¹³⁹ is an apocalyptic number.

524139 is a deficient number, since it is larger than the sum of its proper divisors (347541).

524139 is a wasteful number, since it uses less digits than its factorization.

524139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290.

The product of its digits is 1080, while the sum is 24.

The square root of 524139 is about 723.9744470629. The cubic root of 524139 is about 80.6273077880.

The spelling of 524139 in words is "five hundred twenty-four thousand, one hundred thirty-nine".