12542149171 has 8 divisors (see below), whose sum is σ = 12642361200. Its totient is φ = 12442080000.

The previous prime is 12542149163. The next prime is 12542149181. The reversal of 12542149171 is 17194124521.

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 12542149171 - 2³ = 12542149163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12542149171.

It is not an unprimeable number, because it can be changed into a prime (12542149181) 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, 144171 + ... + 214171.

It is an arithmetic number, because the mean of its divisors is an integer number (1580295150).

Almost surely, 2^12542149171 is an apocalyptic number.

12542149171 is a deficient number, since it is larger than the sum of its proper divisors (100212029).

12542149171 is a wasteful number, since it uses less digits than its factorization.

12542149171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71429.

The product of its digits is 20160, while the sum is 37.

The spelling of 12542149171 in words is "twelve billion, five hundred forty-two million, one hundred forty-nine thousand, one hundred seventy-one".