45049223 has 4 divisors (see below), whose sum is σ = 45119928. Its totient is φ = 44978520.

The previous prime is 45049217. The next prime is 45049241. The reversal of 45049223 is 32294054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45049223 - 2⁶ = 45049159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45049723) 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, 34388 + ... + 35673.

It is an arithmetic number, because the mean of its divisors is an integer number (11279982).

Almost surely, 2^45049223 is an apocalyptic number.

45049223 is a deficient number, since it is larger than the sum of its proper divisors (70705).

45049223 is an equidigital number, since it uses as much as digits as its factorization.

45049223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70704.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 45049223 is about 6711.8717955575. The cubic root of 45049223 is about 355.8189727903.

The spelling of 45049223 in words is "forty-five million, forty-nine thousand, two hundred twenty-three".