4678181 has 2 divisors, whose sum is σ = 4678182. Its totient is φ = 4678180.

The previous prime is 4678133. The next prime is 4678183. The reversal of 4678181 is 1818764.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4661281 + 16900 = 2159^2 + 130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4678181 is a prime.

It is a super-2 number, since 2×4678181² = 43770754937522, which contains 22 as substring.

Together with 4678183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4678183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2339090 + 2339091.

It is an arithmetic number, because the mean of its divisors is an integer number (2339091).

Almost surely, 2^4678181 is an apocalyptic number.

It is an amenable number.

4678181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4678181 is an equidigital number, since it uses as much as digits as its factorization.

4678181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 35.

The square root of 4678181 is about 2162.9103078954. The cubic root of 4678181 is about 167.2472582431.

The spelling of 4678181 in words is "four million, six hundred seventy-eight thousand, one hundred eighty-one".