12860522 has 4 divisors (see below), whose sum is σ = 19290786. Its totient is φ = 6430260.

The previous prime is 12860501. The next prime is 12860531. The reversal of 12860522 is 22506821.

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

It can be written as a sum of positive squares in only one way, i.e., 8404201 + 4456321 = 2899^2 + 2111^2 .

It is a super-2 number, since 2×12860522² = 330786052224968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12860491 and 12860500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215129 + ... + 3215132.

Almost surely, 2^12860522 is an apocalyptic number.

12860522 is a deficient number, since it is larger than the sum of its proper divisors (6430264).

12860522 is an equidigital number, since it uses as much as digits as its factorization.

12860522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430263.

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

The square root of 12860522 is about 3586.1569960056. The cubic root of 12860522 is about 234.2895215877.

The spelling of 12860522 in words is "twelve million, eight hundred sixty thousand, five hundred twenty-two".