12135647134 has 8 divisors (see below), whose sum is σ = 19603737720. Its totient is φ = 5601067896.

The previous prime is 12135647071. The next prime is 12135647213. The reversal of 12135647134 is 43174653121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12135647093 and 12135647102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233377804 + ... + 233377855.

It is an arithmetic number, because the mean of its divisors is an integer number (2450467215).

Almost surely, 2^12135647134 is an apocalyptic number.

12135647134 is a deficient number, since it is larger than the sum of its proper divisors (7468090586).

12135647134 is a wasteful number, since it uses less digits than its factorization.

12135647134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466755674.

The product of its digits is 60480, while the sum is 37.

It can be divided in two parts, 121356 and 47134, that added together give a triangular number (168490 = T₅₈₀).

The spelling of 12135647134 in words is "twelve billion, one hundred thirty-five million, six hundred forty-seven thousand, one hundred thirty-four".