45040223 has 2 divisors, whose sum is σ = 45040224. Its totient is φ = 45040222.

The previous prime is 45040213. The next prime is 45040231. The reversal of 45040223 is 32204054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45040223 - 2⁴ = 45040207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45040195 and 45040204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45040213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22520111 + 22520112.

It is an arithmetic number, because the mean of its divisors is an integer number (22520112).

Almost surely, 2^45040223 is an apocalyptic number.

45040223 is a deficient number, since it is larger than the sum of its proper divisors (1).

45040223 is an equidigital number, since it uses as much as digits as its factorization.

45040223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 45040223 is about 6711.2013082607. The cubic root of 45040223 is about 355.7952758664.

Adding to 45040223 its reverse (32204054), we get a palindrome (77244277).

The spelling of 45040223 in words is "forty-five million, forty thousand, two hundred twenty-three".