45540545 has 8 divisors (see below), whose sum is σ = 55981800. Its totient is φ = 35543680.

The previous prime is 45540533. The next prime is 45540559. The reversal of 45540545 is 54504554.

45540545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5041 + 45535504 = 71^2 + 6748^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45540545 - 2¹⁴ = 45524161 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 110870 + ... + 111279.

It is an arithmetic number, because the mean of its divisors is an integer number (6997725).

Almost surely, 2^45540545 is an apocalyptic number.

It is an amenable number.

45540545 is a deficient number, since it is larger than the sum of its proper divisors (10441255).

45540545 is a wasteful number, since it uses less digits than its factorization.

45540545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222195.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 45540545 is about 6748.3735077424. The cubic root of 45540545 is about 357.1078589324.

The spelling of 45540545 in words is "forty-five million, five hundred forty thousand, five hundred forty-five".