531123260 has 12 divisors (see below), whose sum is σ = 1115358888. Its totient is φ = 212449296.

The previous prime is 531123259. The next prime is 531123269. The reversal of 531123260 is 62321135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531123269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13278062 + ... + 13278101.

It is an arithmetic number, because the mean of its divisors is an integer number (92946574).

Almost surely, 2^531123260 is an apocalyptic number.

It is an amenable number.

531123260 is an abundant number, since it is smaller than the sum of its proper divisors (584235628).

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

531123260 is a wasteful number, since it uses less digits than its factorization.

531123260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26556172 (or 26556170 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 531123260 is about 23046.1116026110. Note that the first 3 decimals coincide. The cubic root of 531123260 is about 809.8385391734.

Adding to 531123260 its reverse (62321135), we get a palindrome (593444395).

The spelling of 531123260 in words is "five hundred thirty-one million, one hundred twenty-three thousand, two hundred sixty".