12542140134 has 12 divisors (see below), whose sum is σ = 27174636996. Its totient is φ = 4180713372.

The previous prime is 12542140129. The next prime is 12542140199. The reversal of 12542140134 is 43104124521.

12542140134 is a `hidden beast` number, since 1 + 254 + 2 + 1 + 401 + 3 + 4 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12542140098 and 12542140107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348392764 + ... + 348392799.

It is an arithmetic number, because the mean of its divisors is an integer number (2264553083).

Almost surely, 2^12542140134 is an apocalyptic number.

12542140134 is an abundant number, since it is smaller than the sum of its proper divisors (14632496862).

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

12542140134 is a wasteful number, since it uses less digits than its factorization.

12542140134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696785571 (or 696785568 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12542140134 its reverse (43104124521), we get a palindrome (55646264655).

The spelling of 12542140134 in words is "twelve billion, five hundred forty-two million, one hundred forty thousand, one hundred thirty-four".