12261188 has 12 divisors (see below), whose sum is σ = 21678972. Its totient is φ = 6067200.

The previous prime is 12261187. The next prime is 12261211. The reversal of 12261188 is 88116221.

12261188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8809024 + 3452164 = 2968^2 + 1858^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12261188.

It is not an unprimeable number, because it can be changed into a prime (12261181) 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, 15413 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (1806581).

Almost surely, 2^12261188 is an apocalyptic number.

It is an amenable number.

12261188 is a deficient number, since it is larger than the sum of its proper divisors (9417784).

12261188 is a wasteful number, since it uses less digits than its factorization.

12261188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31702 (or 31700 counting only the distinct ones).

The product of its digits is 1536, while the sum is 29.

The square root of 12261188 is about 3501.5979209498. The cubic root of 12261188 is about 230.5919722437.

The spelling of 12261188 in words is "twelve million, two hundred sixty-one thousand, one hundred eighty-eight".