45724223 has 2 divisors, whose sum is σ = 45724224. Its totient is φ = 45724222.

The previous prime is 45724219. The next prime is 45724229. The reversal of 45724223 is 32242754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45724223 - 2² = 45724219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45724229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22862111 + 22862112.

It is an arithmetic number, because the mean of its divisors is an integer number (22862112).

Almost surely, 2^45724223 is an apocalyptic number.

45724223 is a deficient number, since it is larger than the sum of its proper divisors (1).

45724223 is an equidigital number, since it uses as much as digits as its factorization.

45724223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 29.

The square root of 45724223 is about 6761.9688700851. The cubic root of 45724223 is about 357.5873208381.

Adding to 45724223 its reverse (32242754), we get a palindrome (77966977).

The spelling of 45724223 in words is "forty-five million, seven hundred twenty-four thousand, two hundred twenty-three".