45444613 has 2 divisors, whose sum is σ = 45444614. Its totient is φ = 45444612.

The previous prime is 45444601. The next prime is 45444631. The reversal of 45444613 is 31644454.

45444613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (45444631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29778849 + 15665764 = 5457^2 + 3958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45444613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45444683) 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, 22722306 + 22722307.

It is an arithmetic number, because the mean of its divisors is an integer number (22722307).

Almost surely, 2^45444613 is an apocalyptic number.

It is an amenable number.

45444613 is a deficient number, since it is larger than the sum of its proper divisors (1).

45444613 is an equidigital number, since it uses as much as digits as its factorization.

45444613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

The square root of 45444613 is about 6741.2619738444. The cubic root of 45444613 is about 356.8569312195.

The spelling of 45444613 in words is "forty-five million, four hundred forty-four thousand, six hundred thirteen".