45438223 has 2 divisors, whose sum is σ = 45438224. Its totient is φ = 45438222.

The previous prime is 45438203. The next prime is 45438233. The reversal of 45438223 is 32283454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45438223 - 2⁵ = 45438191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45438203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22719111 + 22719112.

It is an arithmetic number, because the mean of its divisors is an integer number (22719112).

Almost surely, 2^45438223 is an apocalyptic number.

45438223 is a deficient number, since it is larger than the sum of its proper divisors (1).

45438223 is an equidigital number, since it uses as much as digits as its factorization.

45438223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 31.

The square root of 45438223 is about 6740.7880103145. The cubic root of 45438223 is about 356.8402044648.

The spelling of 45438223 in words is "forty-five million, four hundred thirty-eight thousand, two hundred twenty-three".