4781136 has 20 divisors (see below), whose sum is σ = 12351392. Its totient is φ = 1593696.

The previous prime is 4781129. The next prime is 4781137. The reversal of 4781136 is 6311874.

It is a happy number.

It is a super-2 number, since 2×4781136² = 45718522900992, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49756 + ... + 49851.

Almost surely, 2^4781136 is an apocalyptic number.

It is an amenable number.

4781136 is an abundant number, since it is smaller than the sum of its proper divisors (7570256).

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

4781136 is a wasteful number, since it uses less digits than its factorization.

4781136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99618 (or 99612 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 4781136 is about 2186.5808926267. The cubic root of 4781136 is about 168.4652635854.

The spelling of 4781136 in words is "four million, seven hundred eighty-one thousand, one hundred thirty-six".