45081144 has 64 divisors (see below), whose sum is σ = 132602400. Its totient is φ = 14141952.

The previous prime is 45081107. The next prime is 45081163. The reversal of 45081144 is 44118054.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2467 + ... + 9810.

Almost surely, 2^45081144 is an apocalyptic number.

It is an amenable number.

45081144 is an abundant number, since it is smaller than the sum of its proper divisors (87521256).

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

45081144 is a wasteful number, since it uses less digits than its factorization.

45081144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12309 (or 12299 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 45081144 is about 6714.2493251294. The cubic root of 45081144 is about 355.9029950740.

Adding to 45081144 its reverse (44118054), we get a palindrome (89199198).

The spelling of 45081144 in words is "forty-five million, eighty-one thousand, one hundred forty-four".