12680651 has 4 divisors (see below), whose sum is σ = 12806304. Its totient is φ = 12555000.

The previous prime is 12680641. The next prime is 12680653. The reversal of 12680651 is 15608621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12680651 - 2⁶ = 12680587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12680653) 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, 62675 + ... + 62876.

It is an arithmetic number, because the mean of its divisors is an integer number (3201576).

Almost surely, 2^12680651 is an apocalyptic number.

12680651 is a deficient number, since it is larger than the sum of its proper divisors (125653).

12680651 is a wasteful number, since it uses less digits than its factorization.

12680651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125652.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12680651 is about 3560.9901712866. The cubic root of 12680651 is about 233.1921088725.

It can be divided in two parts, 12680 and 651, that added together give a palindrome (13331).

The spelling of 12680651 in words is "twelve million, six hundred eighty thousand, six hundred fifty-one".