4518881 has 2 divisors, whose sum is σ = 4518882. Its totient is φ = 4518880.

The previous prime is 4518863. The next prime is 4518883. The reversal of 4518881 is 1888154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3297856 + 1221025 = 1816^2 + 1105^2 .

It is a cyclic number.

It is not a de Polignac number, because 4518881 - 2¹⁰ = 4517857 is a prime.

It is a super-2 number, since 2×4518881² = 40840570984322, which contains 22 as substring.

Together with 4518883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4518883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2259440 + 2259441.

It is an arithmetic number, because the mean of its divisors is an integer number (2259441).

Almost surely, 2^4518881 is an apocalyptic number.

It is an amenable number.

4518881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4518881 is an equidigital number, since it uses as much as digits as its factorization.

4518881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10240, while the sum is 35.

The square root of 4518881 is about 2125.7659795942. The cubic root of 4518881 is about 165.3269428064.

The spelling of 4518881 in words is "four million, five hundred eighteen thousand, eight hundred eighty-one".