2243081 has 2 divisors, whose sum is σ = 2243082. Its totient is φ = 2243080.

The previous prime is 2243077. The next prime is 2243089. The reversal of 2243081 is 1803422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1731856 + 511225 = 1316^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243081 - 2² = 2243077 is a prime.

It is a super-2 number, since 2×2243081² = 10062824745122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2243089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121540 + 1121541.

It is an arithmetic number, because the mean of its divisors is an integer number (1121541).

2^2243081 is an apocalyptic number.

It is an amenable number.

2243081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243081 is an equidigital number, since it uses as much as digits as its factorization.

2243081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2243081 is about 1497.6918908774. The cubic root of 2243081 is about 130.9026139443.

The spelling of 2243081 in words is "two million, two hundred forty-three thousand, eighty-one".