45210645 has 24 divisors (see below), whose sum is σ = 78564096. Its totient is φ = 24051168.

The previous prime is 45210629. The next prime is 45210689. The reversal of 45210645 is 54601254.

45210645 is a `hidden beast` number, since 4 + 5 + 2 + 10 + 645 = 666.

45210645 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 45210645 - 2⁴ = 45210629 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 20884 + ... + 22946.

It is an arithmetic number, because the mean of its divisors is an integer number (3273504).

Almost surely, 2^45210645 is an apocalyptic number.

45210645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45210645 is a deficient number, since it is larger than the sum of its proper divisors (33353451).

45210645 is a wasteful number, since it uses less digits than its factorization.

45210645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 45210645 is about 6723.8861531112. The cubic root of 45210645 is about 356.2434606371.

Adding to 45210645 its reverse (54601254), we get a palindrome (99811899).

The spelling of 45210645 in words is "forty-five million, two hundred ten thousand, six hundred forty-five".