45144733 has 4 divisors (see below), whose sum is σ = 45763228. Its totient is φ = 44526240.

The previous prime is 45144727. The next prime is 45144751. The reversal of 45144733 is 33744154.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38601369 + 6543364 = 6213^2 + 2558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45144733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45144695 and 45144704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45144713) 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, 309138 + ... + 309283.

It is an arithmetic number, because the mean of its divisors is an integer number (11440807).

Almost surely, 2^45144733 is an apocalyptic number.

It is an amenable number.

45144733 is a deficient number, since it is larger than the sum of its proper divisors (618495).

45144733 is an equidigital number, since it uses as much as digits as its factorization.

45144733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618494.

The product of its digits is 20160, while the sum is 31.

The square root of 45144733 is about 6718.9830331680. The cubic root of 45144733 is about 356.0702555658.

Adding to 45144733 its reverse (33744154), we get a palindrome (78888887).

The spelling of 45144733 in words is "forty-five million, one hundred forty-four thousand, seven hundred thirty-three".