2242549 has 2 divisors, whose sum is σ = 2242550. Its totient is φ = 2242548.

The previous prime is 2242529. The next prime is 2242651. The reversal of 2242549 is 9452422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2196324 + 46225 = 1482^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242549 - 2⁵ = 2242517 is a 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 (2242519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121274 + 1121275.

It is an arithmetic number, because the mean of its divisors is an integer number (1121275).

2^2242549 is an apocalyptic number.

It is an amenable number.

2242549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242549 is an equidigital number, since it uses as much as digits as its factorization.

2242549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 2242549 is about 1497.5142737216. The cubic root of 2242549 is about 130.8922642368.

The spelling of 2242549 in words is "two million, two hundred forty-two thousand, five hundred forty-nine".