2241545 has 4 divisors (see below), whose sum is σ = 2689860. Its totient is φ = 1793232.

The previous prime is 2241539. The next prime is 2241553. The reversal of 2241545 is 5451422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5451422 = 2 ⋅2725711.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 674041 = 1252^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 2241545 - 2²⁰ = 1192969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2241545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224150 + ... + 224159.

It is an arithmetic number, because the mean of its divisors is an integer number (672465).

2^2241545 is an apocalyptic number.

It is an amenable number.

2241545 is a deficient number, since it is larger than the sum of its proper divisors (448315).

2241545 is an equidigital number, since it uses as much as digits as its factorization.

2241545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448314.

The product of its digits is 1600, while the sum is 23.

The square root of 2241545 is about 1497.1790140127. The cubic root of 2241545 is about 130.8727276217.

Adding to 2241545 its reverse (5451422), we get a palindrome (7692967).

The spelling of 2241545 in words is "two million, two hundred forty-one thousand, five hundred forty-five".