12175138132 has 12 divisors (see below), whose sum is σ = 22559814900. Its totient is φ = 5729476736.

The previous prime is 12175138127. The next prime is 12175138181. The reversal of 12175138132 is 23183157121.

It can be written as a sum of positive squares in 2 ways, for example, as 10806434116 + 1368704016 = 103954^2 + 36996^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89523007 + ... + 89523142.

It is an arithmetic number, because the mean of its divisors is an integer number (1879984575).

Almost surely, 2^12175138132 is an apocalyptic number.

It is an amenable number.

12175138132 is a deficient number, since it is larger than the sum of its proper divisors (10384676768).

12175138132 is a wasteful number, since it uses less digits than its factorization.

12175138132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179046170 (or 179046168 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The spelling of 12175138132 in words is "twelve billion, one hundred seventy-five million, one hundred thirty-eight thousand, one hundred thirty-two".