45000881 has 2 divisors, whose sum is σ = 45000882. Its totient is φ = 45000880.

The previous prime is 45000847. The next prime is 45000889. The reversal of 45000881 is 18800054.

45000881 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., 31192225 + 13808656 = 5585^2 + 3716^2 .

It is a cyclic number.

It is not a de Polignac number, because 45000881 - 2¹⁴ = 44984497 is a prime.

It is a super-2 number, since 2×45000881² = 4050158581552322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45000881.

It is not a weakly prime, because it can be changed into another prime (45000889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22500440 + 22500441.

It is an arithmetic number, because the mean of its divisors is an integer number (22500441).

Almost surely, 2^45000881 is an apocalyptic number.

It is an amenable number.

45000881 is a deficient number, since it is larger than the sum of its proper divisors (1).

45000881 is an equidigital number, since it uses as much as digits as its factorization.

45000881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 45000881 is about 6708.2695980409. The cubic root of 45000881 is about 355.6916516361.

The spelling of 45000881 in words is "forty-five million, eight hundred eighty-one", and thus it is an aban number.