531036 has 60 divisors (see below), whose sum is σ = 1524600. Its totient is φ = 159840.

The previous prime is 531023. The next prime is 531043. The reversal of 531036 is 630135.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 3, base 9 and base 14.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

531036 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3490 + ... + 3638.

It is an arithmetic number, because the mean of its divisors is an integer number (25410).

2⁵³¹⁰³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762300).

531036 is an abundant number, since it is smaller than the sum of its proper divisors (993564).

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

531036 is a wasteful number, since it uses less digits than its factorization.

531036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 531036 is about 728.7221692799. The cubic root of 531036 is about 80.9794186392.

Subtracting 531036 from its reverse (630135), we obtain a palindrome (99099).

It can be divided in two parts, 53 and 1036, that added together give a square (1089 = 33²).

The spelling of 531036 in words is "five hundred thirty-one thousand, thirty-six".