12520230 has 32 divisors (see below), whose sum is σ = 30465504. Its totient is φ = 3292416.

The previous prime is 12520219. The next prime is 12520237. The reversal of 12520230 is 3202521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520237) 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 15 ways as a sum of consecutive naturals, for example, 669 + ... + 5048.

It is an arithmetic number, because the mean of its divisors is an integer number (952047).

Almost surely, 2^12520230 is an apocalyptic number.

12520230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12520230 is an abundant number, since it is smaller than the sum of its proper divisors (17945274).

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

12520230 is a wasteful number, since it uses less digits than its factorization.

12520230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5800.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 12520230 is about 3538.3937033632. The cubic root of 12520230 is about 232.2045733234.

Adding to 12520230 its reverse (3202521), we get a palindrome (15722751).

The spelling of 12520230 in words is "twelve million, five hundred twenty thousand, two hundred thirty".