4908181 has 2 divisors, whose sum is σ = 4908182. Its totient is φ = 4908180.

The previous prime is 4908179. The next prime is 4908187. The reversal of 4908181 is 1818094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4774225 + 133956 = 2185^2 + 366^2 .

It is a cyclic number.

It is not a de Polignac number, because 4908181 - 2¹ = 4908179 is a prime.

It is a super-2 number, since 2×4908181² = 48180481457522, which contains 22 as substring.

Together with 4908179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4908187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2454090 + 2454091.

It is an arithmetic number, because the mean of its divisors is an integer number (2454091).

Almost surely, 2^4908181 is an apocalyptic number.

It is an amenable number.

4908181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4908181 is an equidigital number, since it uses as much as digits as its factorization.

4908181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 4908181 is about 2215.4414909900. The cubic root of 4908181 is about 169.9443993488.

The spelling of 4908181 in words is "four million, nine hundred eight thousand, one hundred eighty-one".