2224991 has 2 divisors, whose sum is σ = 2224992. Its totient is φ = 2224990.

The previous prime is 2224987. The next prime is 2225009. The reversal of 2224991 is 1994222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2224991 - 2² = 2224987 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2224931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112495 + 1112496.

It is an arithmetic number, because the mean of its divisors is an integer number (1112496).

2^2224991 is an apocalyptic number.

2224991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2224991 is an equidigital number, since it uses as much as digits as its factorization.

2224991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 2224991 is about 1491.6403722077. The cubic root of 2224991 is about 130.5497625383.

The spelling of 2224991 in words is "two million, two hundred twenty-four thousand, nine hundred ninety-one".