2243545 has 8 divisors (see below), whose sum is σ = 2749824. Its totient is φ = 1756464.

The previous prime is 2243537. The next prime is 2243551. The reversal of 2243545 is 5453422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2243545 - 2³ = 2243537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4539 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (343728).

2^2243545 is an apocalyptic number.

It is an amenable number.

2243545 is a deficient number, since it is larger than the sum of its proper divisors (506279).

2243545 is an equidigital number, since it uses as much as digits as its factorization.

2243545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9599.

The product of its digits is 4800, while the sum is 25.

The square root of 2243545 is about 1497.8467878925. The cubic root of 2243545 is about 130.9116394209.

Adding to 2243545 its reverse (5453422), we get a palindrome (7696967).

The spelling of 2243545 in words is "two million, two hundred forty-three thousand, five hundred forty-five".