45131224 has 16 divisors (see below), whose sum is σ = 86056200. Its totient is φ = 22182912.

The previous prime is 45131197. The next prime is 45131227. The reversal of 45131224 is 42213154.

It is a junction number, because it is equal to n+sod(n) for n = 45131195 and 45131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45131227) 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, 47337 + ... + 48280.

Almost surely, 2^45131224 is an apocalyptic number.

It is an amenable number.

45131224 is a deficient number, since it is larger than the sum of its proper divisors (40924976).

45131224 is a wasteful number, since it uses less digits than its factorization.

45131224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95682 (or 95678 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 45131224 is about 6717.9776718891. The cubic root of 45131224 is about 356.0347354905.

Adding to 45131224 its reverse (42213154), we get a palindrome (87344378).

The spelling of 45131224 in words is "forty-five million, one hundred thirty-one thousand, two hundred twenty-four".