45184561 has 2 divisors, whose sum is σ = 45184562. Its totient is φ = 45184560.

The previous prime is 45184553. The next prime is 45184597. The reversal of 45184561 is 16548154.

45184561 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., 35224225 + 9960336 = 5935^2 + 3156^2 .

It is a cyclic number.

It is not a de Polignac number, because 45184561 - 2³ = 45184553 is a prime.

It is not a weakly prime, because it can be changed into another prime (45184661) 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, 22592280 + 22592281.

It is an arithmetic number, because the mean of its divisors is an integer number (22592281).

Almost surely, 2^45184561 is an apocalyptic number.

It is an amenable number.

45184561 is a deficient number, since it is larger than the sum of its proper divisors (1).

45184561 is an equidigital number, since it uses as much as digits as its factorization.

45184561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 34.

The square root of 45184561 is about 6721.9462211476. The cubic root of 45184561 is about 356.1749366421.

It can be divided in two parts, 451 and 84561, that multiplied together give a triangular number (38137011 = T₈₇₃₃).

The spelling of 45184561 in words is "forty-five million, one hundred eighty-four thousand, five hundred sixty-one".