12600520 has 16 divisors (see below), whose sum is σ = 28351260. Its totient is φ = 5040192.

The previous prime is 12600493. The next prime is 12600521. The reversal of 12600520 is 2500621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12545764 + 54756 = 3542^2 + 234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12600494 and 12600503.

It is not an unprimeable number, because it can be changed into a prime (12600521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157467 + ... + 157546.

Almost surely, 2^12600520 is an apocalyptic number.

12600520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12600520 is an abundant number, since it is smaller than the sum of its proper divisors (15750740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12600520 is a wasteful number, since it uses less digits than its factorization.

12600520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315024 (or 315020 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12600520 is about 3549.7211158061. The cubic root of 12600520 is about 232.6998782193.

It can be divided in two parts, 126005 and 20, that added together give a square (126025 = 355²).

The spelling of 12600520 in words is "twelve million, six hundred thousand, five hundred twenty".