45307223 has 4 divisors (see below), whose sum is σ = 48792408. Its totient is φ = 41822040.

The previous prime is 45307183. The next prime is 45307253. The reversal of 45307223 is 32270354.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32270354 = 2 ⋅16135177.

It is not a de Polignac number, because 45307223 - 2¹² = 45303127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45307192 and 45307201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45307253) 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, 1742573 + ... + 1742598.

It is an arithmetic number, because the mean of its divisors is an integer number (12198102).

Almost surely, 2^45307223 is an apocalyptic number.

45307223 is a deficient number, since it is larger than the sum of its proper divisors (3485185).

45307223 is a wasteful number, since it uses less digits than its factorization.

45307223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485184.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 45307223 is about 6731.0640317858. The cubic root of 45307223 is about 356.4969467455.

Adding to 45307223 its reverse (32270354), we get a palindrome (77577577).

The spelling of 45307223 in words is "forty-five million, three hundred seven thousand, two hundred twenty-three".