531513112 has 48 divisors (see below), whose sum is σ = 1087744680. Its totient is φ = 243360000.

The previous prime is 531513107. The next prime is 531513119. The reversal of 531513112 is 211315135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531513119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175612 + ... + 178612.

Almost surely, 2^531513112 is an apocalyptic number.

531513112 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531513112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543872340).

531513112 is an abundant number, since it is smaller than the sum of its proper divisors (556231568).

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

531513112 is a wasteful number, since it uses less digits than its factorization.

531513112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164 (or 3147 counting only the distinct ones).

The product of its digits is 450, while the sum is 22.

The square root of 531513112 is about 23054.5681373562. The cubic root of 531513112 is about 810.0366350346.

Adding to 531513112 its reverse (211315135), we get a palindrome (742828247).

The spelling of 531513112 in words is "five hundred thirty-one million, five hundred thirteen thousand, one hundred twelve".