12770188 has 12 divisors (see below), whose sum is σ = 22893192. Its totient is φ = 6229280.

The previous prime is 12770141. The next prime is 12770189. The reversal of 12770188 is 88107721.

12770188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12770189) 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, 38770 + ... + 39097.

It is an arithmetic number, because the mean of its divisors is an integer number (1907766).

Almost surely, 2^12770188 is an apocalyptic number.

It is an amenable number.

12770188 is a deficient number, since it is larger than the sum of its proper divisors (10123004).

12770188 is a wasteful number, since it uses less digits than its factorization.

12770188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77912 (or 77910 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 12770188 is about 3573.5399815869. The cubic root of 12770188 is about 233.7396720155.

The spelling of 12770188 in words is "twelve million, seven hundred seventy thousand, one hundred eighty-eight".