4872181 has 4 divisors (see below), whose sum is σ = 4903372. Its totient is φ = 4840992.

The previous prime is 4872169. The next prime is 4872187. The reversal of 4872181 is 1812784.

4872181 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2340900 + 2531281 = 1530^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 4872181 - 2¹¹ = 4870133 is a prime.

It is a super-2 number, since 2×4872181² = 47476295393522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4872187) 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, 15360 + ... + 15673.

It is an arithmetic number, because the mean of its divisors is an integer number (1225843).

Almost surely, 2^4872181 is an apocalyptic number.

It is an amenable number.

4872181 is a deficient number, since it is larger than the sum of its proper divisors (31191).

4872181 is a wasteful number, since it uses less digits than its factorization.

4872181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31190.

The product of its digits is 3584, while the sum is 31.

The square root of 4872181 is about 2207.3017464769. The cubic root of 4872181 is about 169.5278826863.

The spelling of 4872181 in words is "four million, eight hundred seventy-two thousand, one hundred eighty-one".