45795721 has 2 divisors, whose sum is σ = 45795722. Its totient is φ = 45795720.

The previous prime is 45795713. The next prime is 45795767. The reversal of 45795721 is 12759754.

45795721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42771600 + 3024121 = 6540^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 45795721 - 2³ = 45795713 is a prime.

It is a super-3 number, since 3×45795721³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (45795791) 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, 22897860 + 22897861.

It is an arithmetic number, because the mean of its divisors is an integer number (22897861).

Almost surely, 2^45795721 is an apocalyptic number.

It is an amenable number.

45795721 is a deficient number, since it is larger than the sum of its proper divisors (1).

45795721 is an equidigital number, since it uses as much as digits as its factorization.

45795721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 45795721 is about 6767.2535788162. The cubic root of 45795721 is about 357.7736076833.

The spelling of 45795721 in words is "forty-five million, seven hundred ninety-five thousand, seven hundred twenty-one".