12680522 has 4 divisors (see below), whose sum is σ = 19020786. Its totient is φ = 6340260.

The previous prime is 12680513. The next prime is 12680533. The reversal of 12680522 is 22508621.

12680522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22508621 = 457 ⋅49253.

It can be written as a sum of positive squares in only one way, i.e., 8473921 + 4206601 = 2911^2 + 2051^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12680491 and 12680500.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170129 + ... + 3170132.

Almost surely, 2^12680522 is an apocalyptic number.

12680522 is a deficient number, since it is larger than the sum of its proper divisors (6340264).

12680522 is an equidigital number, since it uses as much as digits as its factorization.

12680522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340263.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12680522 is about 3560.9720583009. The cubic root of 12680522 is about 233.1913181170.

The spelling of 12680522 in words is "twelve million, six hundred eighty thousand, five hundred twenty-two".