531150228 has 36 divisors (see below), whose sum is σ = 1534434720. Its totient is φ = 151757136.

The previous prime is 531150223. The next prime is 531150239. The reversal of 531150228 is 822051135.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531150223) 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, 1053618 + ... + 1054121.

Almost surely, 2^531150228 is an apocalyptic number.

It is an amenable number.

531150228 is an abundant number, since it is smaller than the sum of its proper divisors (1003284492).

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

531150228 is a wasteful number, since it uses less digits than its factorization.

531150228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107756 (or 2107751 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 531150228 is about 23046.6966830390. The cubic root of 531150228 is about 809.8522455688.

The spelling of 531150228 in words is "five hundred thirty-one million, one hundred fifty thousand, two hundred twenty-eight".