12412520 has 16 divisors (see below), whose sum is σ = 27928260. Its totient is φ = 4964992.

The previous prime is 12412513. The next prime is 12412523. The reversal of 12412520 is 2521421.

It can be written as a sum of positive squares in 2 ways, for example, as 11276164 + 1136356 = 3358^2 + 1066^2 .

It is not an unprimeable number, because it can be changed into a prime (12412523) 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, 155117 + ... + 155196.

Almost surely, 2^12412520 is an apocalyptic number.

12412520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12412520 is an abundant number, since it is smaller than the sum of its proper divisors (15515740).

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

12412520 is a wasteful number, since it uses less digits than its factorization.

12412520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310324 (or 310320 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12412520 is about 3523.1406443683. The cubic root of 12412520 is about 231.5367788596.

Adding to 12412520 its reverse (2521421), we get a palindrome (14933941).

The spelling of 12412520 in words is "twelve million, four hundred twelve thousand, five hundred twenty".