45373221 has 12 divisors (see below), whose sum is σ = 69394572. Its totient is φ = 28469376.

The previous prime is 45373201. The next prime is 45373241. The reversal of 45373221 is 12237354.

45373221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45373201) and next prime (45373241).

It can be written as a sum of positive squares in 2 ways, for example, as 34680321 + 10692900 = 5889^2 + 3270^2 .

It is not a de Polignac number, because 45373221 - 2⁹ = 45372709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45373201) 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 11 ways as a sum of consecutive naturals, for example, 148126 + ... + 148431.

It is an arithmetic number, because the mean of its divisors is an integer number (5782881).

Almost surely, 2^45373221 is an apocalyptic number.

It is an amenable number.

45373221 is a deficient number, since it is larger than the sum of its proper divisors (24021351).

45373221 is a wasteful number, since it uses less digits than its factorization.

45373221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296580 (or 296577 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 45373221 is about 6735.9647415942. The cubic root of 45373221 is about 356.6699630910.

The spelling of 45373221 in words is "forty-five million, three hundred seventy-three thousand, two hundred twenty-one".