12708251 has 4 divisors (see below), whose sum is σ = 12719400. Its totient is φ = 12697104.

The previous prime is 12708239. The next prime is 12708253. The reversal of 12708251 is 15280721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12708251 is a prime.

It is a super-2 number, since 2×12708251² = 322999286958002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12708251.

It is not an unprimeable number, because it can be changed into a prime (12708253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3641 + ... + 6218.

It is an arithmetic number, because the mean of its divisors is an integer number (3179850).

Almost surely, 2^12708251 is an apocalyptic number.

12708251 is a deficient number, since it is larger than the sum of its proper divisors (11149).

12708251 is an equidigital number, since it uses as much as digits as its factorization.

12708251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 12708251 is about 3564.8633914920. The cubic root of 12708251 is about 233.3611706017.

Adding to 12708251 its reverse (15280721), we get a palindrome (27988972).

The spelling of 12708251 in words is "twelve million, seven hundred eight thousand, two hundred fifty-one".