45223643 has 4 divisors (see below), whose sum is σ = 45460608. Its totient is φ = 44986680.

The previous prime is 45223627. The next prime is 45223649. The reversal of 45223643 is 34632254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34632254 = 2 ⋅17316127.

It is a cyclic number.

It is not a de Polignac number, because 45223643 - 2⁴ = 45223627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45223649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118196 + ... + 118577.

It is an arithmetic number, because the mean of its divisors is an integer number (11365152).

Almost surely, 2^45223643 is an apocalyptic number.

45223643 is a deficient number, since it is larger than the sum of its proper divisors (236965).

45223643 is a wasteful number, since it uses less digits than its factorization.

45223643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236964.

The product of its digits is 17280, while the sum is 29.

The square root of 45223643 is about 6724.8526377907. The cubic root of 45223643 is about 356.2775972055.

Adding to 45223643 its reverse (34632254), we get a palindrome (79855897).

The spelling of 45223643 in words is "forty-five million, two hundred twenty-three thousand, six hundred forty-three".