2272549 has 2 divisors, whose sum is σ = 2272550. Its totient is φ = 2272548.

The previous prime is 2272547. The next prime is 2272559. The reversal of 2272549 is 9452722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1890625 + 381924 = 1375^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272549 - 2¹ = 2272547 is a prime.

Together with 2272547, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2272549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2272547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136274 + 1136275.

It is an arithmetic number, because the mean of its divisors is an integer number (1136275).

2^2272549 is an apocalyptic number.

It is an amenable number.

2272549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272549 is an equidigital number, since it uses as much as digits as its factorization.

2272549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 2272549 is about 1507.4975953546. The cubic root of 2272549 is about 131.4733569467.

The spelling of 2272549 in words is "two million, two hundred seventy-two thousand, five hundred forty-nine".