531123360 has 96 divisors (see below), whose sum is σ = 1745815680. Its totient is φ = 135472128.

The previous prime is 531123353. The next prime is 531123361. The reversal of 531123360 is 63321135.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 531123360.

It is not an unprimeable number, because it can be changed into a prime (531123361) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13015 + ... + 35094.

It is an arithmetic number, because the mean of its divisors is an integer number (18185580).

Almost surely, 2^531123360 is an apocalyptic number.

It is an amenable number.

531123360 is an abundant number, since it is smaller than the sum of its proper divisors (1214692320).

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

531123360 is a wasteful number, since it uses less digits than its factorization.

531123360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48150 (or 48142 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 531123360 is about 23046.1137721743. The cubic root of 531123360 is about 809.8385899990.

Adding to 531123360 its reverse (63321135), we get a palindrome (594444495).

The spelling of 531123360 in words is "five hundred thirty-one million, one hundred twenty-three thousand, three hundred sixty".