531108 has 18 divisors (see below), whose sum is σ = 1342614. Its totient is φ = 177024.

The previous prime is 531103. The next prime is 531121. The reversal of 531108 is 801135.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 451584 + 79524 = 672^2 + 282^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (531101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7341 + ... + 7412.

2⁵³¹¹⁰⁸ is an apocalyptic number.

It is an amenable number.

531108 is an abundant number, since it is smaller than the sum of its proper divisors (811506).

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

531108 is a wasteful number, since it uses less digits than its factorization.

531108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14763 (or 14758 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 531108 is about 728.7715691491. The cubic root of 531108 is about 80.9830783124.

It can be divided in two parts, 5 and 31108, that added together give a palindrome (31113).

The spelling of 531108 in words is "five hundred thirty-one thousand, one hundred eight".