45120545 has 16 divisors (see below), whose sum is σ = 56358720. Its totient is φ = 34649664.

The previous prime is 45120527. The next prime is 45120587. The reversal of 45120545 is 54502154.

It is a cyclic number.

It is not a de Polignac number, because 45120545 - 2¹⁰ = 45119521 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10907 + ... + 14463.

It is an arithmetic number, because the mean of its divisors is an integer number (3522420).

Almost surely, 2^45120545 is an apocalyptic number.

It is an amenable number.

45120545 is a deficient number, since it is larger than the sum of its proper divisors (11238175).

45120545 is a wasteful number, since it uses less digits than its factorization.

45120545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 45120545 is about 6717.1828172233. The cubic root of 45120545 is about 356.0066514980.

Adding to 45120545 its reverse (54502154), we get a palindrome (99622699).

The spelling of 45120545 in words is "forty-five million, one hundred twenty thousand, five hundred forty-five".