12140015445 has 24 divisors (see below), whose sum is σ = 21228920856. Its totient is φ = 6417374208.

The previous prime is 12140015389. The next prime is 12140015449. The reversal of 12140015445 is 54451004121.

12140015445 is a `hidden beast` number, since 1 + 214 + 0 + 0 + 1 + 5 + 445 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1428386436 + 10711629009 = 37794^2 + 103497^2 .

It is not a de Polignac number, because 12140015445 - 2⁷ = 12140015317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140015449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1188624 + ... + 1198793.

It is an arithmetic number, because the mean of its divisors is an integer number (884538369).

Almost surely, 2^12140015445 is an apocalyptic number.

12140015445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12140015445 is a deficient number, since it is larger than the sum of its proper divisors (9088905411).

12140015445 is a wasteful number, since it uses less digits than its factorization.

12140015445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387541 (or 2387538 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 12140015445 its reverse (54451004121), we get a palindrome (66591019566).

The spelling of 12140015445 in words is "twelve billion, one hundred forty million, fifteen thousand, four hundred forty-five".