2242091 has 2 divisors, whose sum is σ = 2242092. Its totient is φ = 2242090.

The previous prime is 2242073. The next prime is 2242111. The reversal of 2242091 is 1902422.

It is an a-pointer prime, because the next prime (2242111) can be obtained adding 2242091 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2242091 - 2⁶ = 2242027 is a prime.

It is not a weakly prime, because it can be changed into another prime (2242291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121045 + 1121046.

It is an arithmetic number, because the mean of its divisors is an integer number (1121046).

2^2242091 is an apocalyptic number.

2242091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242091 is an equidigital number, since it uses as much as digits as its factorization.

2242091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2242091 is about 1497.3613458347. The cubic root of 2242091 is about 130.8833528390.

The spelling of 2242091 in words is "two million, two hundred forty-two thousand, ninety-one".