531641120 has 24 divisors (see below), whose sum is σ = 1256002524. Its totient is φ = 212656384.

The previous prime is 531641107. The next prime is 531641141. The reversal of 531641120 is 21146135.

It can be written as a sum of positive squares in 2 ways, for example, as 521117584 + 10523536 = 22828^2 + 3244^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661219 + ... + 1661538.

Almost surely, 2^531641120 is an apocalyptic number.

It is an amenable number.

531641120 is an abundant number, since it is smaller than the sum of its proper divisors (724361404).

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

531641120 is a wasteful number, since it uses less digits than its factorization.

531641120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322772 (or 3322764 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 531641120 is about 23057.3441662304. The cubic root of 531641120 is about 810.1016587340.

Adding to 531641120 its reverse (21146135), we get a palindrome (552787255).

The spelling of 531641120 in words is "five hundred thirty-one million, six hundred forty-one thousand, one hundred twenty".