45128045 has 4 divisors (see below), whose sum is σ = 54153660. Its totient is φ = 36102432.

The previous prime is 45128023. The next prime is 45128087. The reversal of 45128045 is 54082154.

45128045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13734436 + 31393609 = 3706^2 + 5603^2 .

It is a cyclic number.

It is not a de Polignac number, because 45128045 - 2⁶ = 45127981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45127999 and 45128017.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 4512800 + ... + 4512809.

It is an arithmetic number, because the mean of its divisors is an integer number (13538415).

Almost surely, 2^45128045 is an apocalyptic number.

It is an amenable number.

45128045 is a deficient number, since it is larger than the sum of its proper divisors (9025615).

45128045 is an equidigital number, since it uses as much as digits as its factorization.

45128045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9025614.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 45128045 is about 6717.7410637803. The cubic root of 45128045 is about 356.0263757128.

The spelling of 45128045 in words is "forty-five million, one hundred twenty-eight thousand, forty-five".