45681144 has 16 divisors (see below), whose sum is σ = 114202920. Its totient is φ = 15227040.

The previous prime is 45681127. The next prime is 45681157. The reversal of 45681144 is 44118654.

45681144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 951667 + ... + 951714.

Almost surely, 2^45681144 is an apocalyptic number.

It is an amenable number.

45681144 is an abundant number, since it is smaller than the sum of its proper divisors (68521776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45681144 is a wasteful number, since it uses less digits than its factorization.

45681144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903390 (or 1903386 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 45681144 is about 6758.7827306402. The cubic root of 45681144 is about 357.4749854537.

Adding to 45681144 its reverse (44118654), we get a palindrome (89799798).

The spelling of 45681144 in words is "forty-five million, six hundred eighty-one thousand, one hundred forty-four".