45231645 has 16 divisors (see below), whose sum is σ = 76628160. Its totient is φ = 22704384.

The previous prime is 45231623. The next prime is 45231671. The reversal of 45231645 is 54613254.

45231645 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 45231645 - 2⁶ = 45231581 is a prime.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 88435 + ... + 88944.

It is an arithmetic number, because the mean of its divisors is an integer number (4789260).

Almost surely, 2^45231645 is an apocalyptic number.

It is an amenable number.

45231645 is a deficient number, since it is larger than the sum of its proper divisors (31396515).

45231645 is a wasteful number, since it uses less digits than its factorization.

45231645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177404.

The product of its digits is 14400, while the sum is 30.

The square root of 45231645 is about 6725.4475687496. The cubic root of 45231645 is about 356.2986095566.

Adding to 45231645 its reverse (54613254), we get a palindrome (99844899).

The spelling of 45231645 in words is "forty-five million, two hundred thirty-one thousand, six hundred forty-five".