12520164 has 48 divisors (see below), whose sum is σ = 31147200. Its totient is φ = 3902976.

The previous prime is 12520163. The next prime is 12520169. The reversal of 12520164 is 46102521.

It is a self number, because there is not a number n which added to its sum of digits gives 12520164.

It is not an unprimeable number, because it can be changed into a prime (12520163) 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, 19984 + ... + 20600.

It is an arithmetic number, because the mean of its divisors is an integer number (648900).

Almost surely, 2^12520164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12520164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15573600).

12520164 is an abundant number, since it is smaller than the sum of its proper divisors (18627036).

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

12520164 is a wasteful number, since it uses less digits than its factorization.

12520164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12520164 is about 3538.3843770851. The cubic root of 12520164 is about 232.2041653029.

Adding to 12520164 its reverse (46102521), we get a palindrome (58622685).

The spelling of 12520164 in words is "twelve million, five hundred twenty thousand, one hundred sixty-four".