12135505174 has 16 divisors (see below), whose sum is σ = 19609671312. Its totient is φ = 5599241568.

The previous prime is 12135505169. The next prime is 12135505183. The reversal of 12135505174 is 47150553121.

12135505174 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12837 + ... + 156319.

It is an arithmetic number, because the mean of its divisors is an integer number (1225604457).

Almost surely, 2^12135505174 is an apocalyptic number.

12135505174 is a deficient number, since it is larger than the sum of its proper divisors (7474166138).

12135505174 is a wasteful number, since it uses less digits than its factorization.

12135505174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146751.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 12135505174 in words is "twelve billion, one hundred thirty-five million, five hundred five thousand, one hundred seventy-four".