12693128 has 16 divisors (see below), whose sum is σ = 27199680. Its totient is φ = 5439888.

The previous prime is 12693113. The next prime is 12693133. The reversal of 12693128 is 82139621.

It is a super-2 number, since 2×12693128² = 322230996848768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12693094 and 12693103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113276 + ... + 113387.

It is an arithmetic number, because the mean of its divisors is an integer number (1699980).

Almost surely, 2^12693128 is an apocalyptic number.

It is an amenable number.

12693128 is an abundant number, since it is smaller than the sum of its proper divisors (14506552).

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

12693128 is a wasteful number, since it uses less digits than its factorization.

12693128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226676 (or 226672 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 12693128 is about 3562.7416409277. The cubic root of 12693128 is about 233.2685661510.

It can be divided in two parts, 12693 and 128, that added together give a palindrome (12821).

The spelling of 12693128 in words is "twelve million, six hundred ninety-three thousand, one hundred twenty-eight".