45731144 has 16 divisors (see below), whose sum is σ = 88703100. Its totient is φ = 22076992.

The previous prime is 45731111. The next prime is 45731159. The reversal of 45731144 is 44113754.

It is a happy number.

45731144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45292900 + 438244 = 6730^2 + 662^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 98327 + ... + 98790.

Almost surely, 2^45731144 is an apocalyptic number.

It is an amenable number.

45731144 is a deficient number, since it is larger than the sum of its proper divisors (42971956).

45731144 is a wasteful number, since it uses less digits than its factorization.

45731144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197152 (or 197148 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 45731144 is about 6762.4806099537. The cubic root of 45731144 is about 357.6053618736.

Adding to 45731144 its reverse (44113754), we get a palindrome (89844898).

The spelling of 45731144 in words is "forty-five million, seven hundred thirty-one thousand, one hundred forty-four".