12540051145 has 8 divisors (see below), whose sum is σ = 15702325056. Its totient is φ = 9595865136.

The previous prime is 12540051143. The next prime is 12540051151. The reversal of 12540051145 is 54115004521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12540051145 - 2¹ = 12540051143 is a prime.

It is a super-2 number, since 2×12540051145² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12540051143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54521847 + ... + 54522076.

It is an arithmetic number, because the mean of its divisors is an integer number (1962790632).

Almost surely, 2^12540051145 is an apocalyptic number.

It is an amenable number.

12540051145 is a deficient number, since it is larger than the sum of its proper divisors (3162273911).

12540051145 is a wasteful number, since it uses less digits than its factorization.

12540051145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109043951.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 12540051145 its reverse (54115004521), we get a palindrome (66655055666).

The spelling of 12540051145 in words is "twelve billion, five hundred forty million, fifty-one thousand, one hundred forty-five".