12145945372 has 12 divisors (see below), whose sum is σ = 23187713976. Its totient is φ = 5520884240.

The previous prime is 12145945351. The next prime is 12145945381. The reversal of 12145945372 is 27354954121.

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, 138022063 + ... + 138022150.

It is an arithmetic number, because the mean of its divisors is an integer number (1932309498).

Almost surely, 2^12145945372 is an apocalyptic number.

It is an amenable number.

12145945372 is a deficient number, since it is larger than the sum of its proper divisors (11041768604).

12145945372 is a wasteful number, since it uses less digits than its factorization.

12145945372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276044228 (or 276044226 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The spelling of 12145945372 in words is "twelve billion, one hundred forty-five million, nine hundred forty-five thousand, three hundred seventy-two".