12788501 has 16 divisors (see below), whose sum is σ = 15037440. Its totient is φ = 10750320.

The previous prime is 12788497. The next prime is 12788513. The reversal of 12788501 is 10588721.

It is a happy number.

12788501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12788501 - 2² = 12788497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8276 + ... + 9698.

It is an arithmetic number, because the mean of its divisors is an integer number (939840).

Almost surely, 2^12788501 is an apocalyptic number.

12788501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12788501 is a deficient number, since it is larger than the sum of its proper divisors (2248939).

12788501 is a wasteful number, since it uses less digits than its factorization.

12788501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 12788501 is about 3576.1013688093. The cubic root of 12788501 is about 233.8513495704.

It can be divided in two parts, 1278 and 8501, that added together give a palindrome (9779).

The spelling of 12788501 in words is "twelve million, seven hundred eighty-eight thousand, five hundred one".