531356112 has 200 divisors, whose sum is σ = 1806241536. Its totient is φ = 147619584.

The previous prime is 531356101. The next prime is 531356113. The reversal of 531356112 is 211653135.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531356113) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 334873 + ... + 336455.

Almost surely, 2^531356112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531356112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903120768).

531356112 is an abundant number, since it is smaller than the sum of its proper divisors (1274885424).

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

531356112 is a wasteful number, since it uses less digits than its factorization.

531356112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1632 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 531356112 is about 23051.1629207726. The cubic root of 531356112 is about 809.9568701315.

It can be divided in two parts, 5313 and 56112, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 531356112 in words is "five hundred thirty-one million, three hundred fifty-six thousand, one hundred twelve".