45633221 has 2 divisors, whose sum is σ = 45633222. Its totient is φ = 45633220.

The previous prime is 45633197. The next prime is 45633233. The reversal of 45633221 is 12233654.

45633221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38925121 + 6708100 = 6239^2 + 2590^2 .

It is a cyclic number.

It is not a de Polignac number, because 45633221 - 2¹⁸ = 45371077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45633241) 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 as a sum of consecutive naturals, namely, 22816610 + 22816611.

It is an arithmetic number, because the mean of its divisors is an integer number (22816611).

Almost surely, 2^45633221 is an apocalyptic number.

It is an amenable number.

45633221 is a deficient number, since it is larger than the sum of its proper divisors (1).

45633221 is an equidigital number, since it uses as much as digits as its factorization.

45633221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 45633221 is about 6755.2365613648. The cubic root of 45633221 is about 357.3499355506.

Adding to 45633221 its reverse (12233654), we get a palindrome (57866875).

It can be divided in two parts, 45633 and 221, that added together give a palindrome (45854).

The spelling of 45633221 in words is "forty-five million, six hundred thirty-three thousand, two hundred twenty-one".