45012012 has 48 divisors (see below), whose sum is σ = 111186432. Its totient is φ = 14143360.

The previous prime is 45011983. The next prime is 45012029. The reversal of 45012012 is 21021054.

45012012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 45011982 and 45012000.

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, 18448 + ... + 20744.

It is an arithmetic number, because the mean of its divisors is an integer number (2316384).

Almost surely, 2^45012012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45012012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55593216).

45012012 is an abundant number, since it is smaller than the sum of its proper divisors (66174420).

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

45012012 is a wasteful number, since it uses less digits than its factorization.

45012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 45012012 is about 6709.0991943777. The cubic root of 45012012 is about 355.7209760796.

Adding to 45012012 its reverse (21021054), we get a palindrome (66033066).

The spelling of 45012012 in words is "forty-five million, twelve thousand, twelve".