531612120 has 64 divisors (see below), whose sum is σ = 1717521120. Its totient is φ = 130857984.

The previous prime is 531612113. The next prime is 531612127. The reversal of 531612120 is 21216135.

It is an interprime number because it is at equal distance from previous prime (531612113) and next prime (531612127).

It is a super-2 number, since 2×531612120² = 565222892261788800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531612127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168829 + ... + 171948.

Almost surely, 2^531612120 is an apocalyptic number.

It is an amenable number.

531612120 is an abundant number, since it is smaller than the sum of its proper divisors (1185909000).

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

531612120 is a wasteful number, since it uses less digits than its factorization.

531612120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340804 (or 340800 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 531612120 is about 23056.7152907781. The cubic root of 531612120 is about 810.0869286373.

Adding to 531612120 its reverse (21216135), we get a palindrome (552828255).

The spelling of 531612120 in words is "five hundred thirty-one million, six hundred twelve thousand, one hundred twenty".