45213445 has 24 divisors (see below), whose sum is σ = 58896504. Its totient is φ = 33291648.

The previous prime is 45213437. The next prime is 45213451. The reversal of 45213445 is 54431254.

45213445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 27899524 + 17313921 = 5282^2 + 4161^2 .

It is not a de Polignac number, because 45213445 - 2³ = 45213437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66447 + ... + 67123.

It is an arithmetic number, because the mean of its divisors is an integer number (2454021).

Almost surely, 2^45213445 is an apocalyptic number.

It is an amenable number.

45213445 is a deficient number, since it is larger than the sum of its proper divisors (13683059).

45213445 is a wasteful number, since it uses less digits than its factorization.

45213445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 738 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 45213445 is about 6724.0943628120. The cubic root of 45213445 is about 356.2508148130.

Adding to 45213445 its reverse (54431254), we get a palindrome (99644699).

The spelling of 45213445 in words is "forty-five million, two hundred thirteen thousand, four hundred forty-five".