12760128 has 42 divisors (see below), whose sum is σ = 36576254. Its totient is φ = 4253184.

The previous prime is 12760123. The next prime is 12760133. The reversal of 12760128 is 82106721.

It is an interprime number because it is at equal distance from previous prime (12760123) and next prime (12760133).

It can be written as a sum of positive squares in only one way, i.e., 7884864 + 4875264 = 2808^2 + 2208^2 .

It is not an unprimeable number, because it can be changed into a prime (12760123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10501 + ... + 11652.

Almost surely, 2^12760128 is an apocalyptic number.

12760128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12760128 is an abundant number, since it is smaller than the sum of its proper divisors (23816126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12760128 is a wasteful number, since it uses less digits than its factorization.

12760128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22171 (or 22158 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12760128 is about 3572.1321364138. The cubic root of 12760128 is about 233.6782780138.

Adding to 12760128 its reverse (82106721), we get a palindrome (94866849).

The spelling of 12760128 in words is "twelve million, seven hundred sixty thousand, one hundred twenty-eight".