12147764 has 12 divisors (see below), whose sum is σ = 22377600. Its totient is φ = 5754168.

The previous prime is 12147743. The next prime is 12147769. The reversal of 12147764 is 46774121.

12147764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12147764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79844 + ... + 79995.

It is an arithmetic number, because the mean of its divisors is an integer number (1864800).

Almost surely, 2^12147764 is an apocalyptic number.

It is an amenable number.

12147764 is a deficient number, since it is larger than the sum of its proper divisors (10229836).

12147764 is a wasteful number, since it uses less digits than its factorization.

12147764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159862 (or 159860 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 12147764 is about 3485.3642564300. The cubic root of 12147764 is about 229.8787262365.

The spelling of 12147764 in words is "twelve million, one hundred forty-seven thousand, seven hundred sixty-four".