5181228 has 36 divisors (see below), whose sum is σ = 14105728. Its totient is φ = 1594080.

The previous prime is 5181223. The next prime is 5181251. The reversal of 5181228 is 8221815.

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

It is not an unprimeable number, because it can be changed into a prime (5181223) 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, 5068 + ... + 6003.

Almost surely, 2^5181228 is an apocalyptic number.

It is an amenable number.

5181228 is an abundant number, since it is smaller than the sum of its proper divisors (8924500).

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

5181228 is a wasteful number, since it uses less digits than its factorization.

5181228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11094 (or 11089 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 5181228 is about 2276.2310954734. The cubic root of 5181228 is about 173.0390948211.

The spelling of 5181228 in words is "five million, one hundred eighty-one thousand, two hundred twenty-eight".