45335721 has 8 divisors (see below), whose sum is σ = 60484320. Its totient is φ = 30205472.

The previous prime is 45335707. The next prime is 45335743. The reversal of 45335721 is 12753354.

45335721 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 a cyclic number.

It is not a de Polignac number, because 45335721 - 2⁷ = 45335593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45335761) 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, 2950 + ... + 9968.

It is an arithmetic number, because the mean of its divisors is an integer number (7560540).

Almost surely, 2^45335721 is an apocalyptic number.

It is an amenable number.

45335721 is a deficient number, since it is larger than the sum of its proper divisors (15148599).

45335721 is a wasteful number, since it uses less digits than its factorization.

45335721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175.

The product of its digits is 12600, while the sum is 30.

The square root of 45335721 is about 6733.1806005780. The cubic root of 45335721 is about 356.5716759680.

It can be divided in two parts, 45335 and 721, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 45335721 in words is "forty-five million, three hundred thirty-five thousand, seven hundred twenty-one".