45032145 has 32 divisors (see below), whose sum is σ = 75841920. Its totient is φ = 22786560.

The previous prime is 45032129. The next prime is 45032149. The reversal of 45032145 is 54123054.

45032145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45032145 - 2⁴ = 45032129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45032149) 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 in 31 ways as a sum of consecutive naturals, for example, 21766 + ... + 23744.

It is an arithmetic number, because the mean of its divisors is an integer number (2370060).

Almost surely, 2^45032145 is an apocalyptic number.

It is an amenable number.

45032145 is a deficient number, since it is larger than the sum of its proper divisors (30809775).

45032145 is a wasteful number, since it uses less digits than its factorization.

45032145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 45032145 is about 6710.5994516138. The cubic root of 45032145 is about 355.7740038722.

Adding to 45032145 its reverse (54123054), we get a palindrome (99155199).

Subtracting 45032145 from its reverse (54123054), we obtain a palindrome (9090909).

The spelling of 45032145 in words is "forty-five million, thirty-two thousand, one hundred forty-five".