45100221 has 8 divisors (see below), whose sum is σ = 60666240. Its totient is φ = 29800512.

The previous prime is 45100207. The next prime is 45100259. The reversal of 45100221 is 12200154.

45100221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45100221 - 2¹¹ = 45098173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45107221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66181 + ... + 66858.

It is an arithmetic number, because the mean of its divisors is an integer number (7583280).

Almost surely, 2^45100221 is an apocalyptic number.

It is an amenable number.

45100221 is a deficient number, since it is larger than the sum of its proper divisors (15566019).

45100221 is a wasteful number, since it uses less digits than its factorization.

45100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133155.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 45100221 is about 6715.6698102274. The cubic root of 45100221 is about 355.9531905167.

Adding to 45100221 its reverse (12200154), we get a palindrome (57300375).

The spelling of 45100221 in words is "forty-five million, one hundred thousand, two hundred twenty-one".