12505164 has 48 divisors (see below), whose sum is σ = 34169856. Its totient is φ = 3484800.

The previous prime is 12505151. The next prime is 12505189. The reversal of 12505164 is 46150521.

12505164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1629 + ... + 5259.

It is an arithmetic number, because the mean of its divisors is an integer number (711872).

Almost surely, 2^12505164 is an apocalyptic number.

12505164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12505164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17084928).

12505164 is an abundant number, since it is smaller than the sum of its proper divisors (21664692).

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

12505164 is a wasteful number, since it uses less digits than its factorization.

12505164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12505164 is about 3536.2641304066. The cubic root of 12505164 is about 232.1113961670. Note that the first 3 decimals are identical.

Adding to 12505164 its reverse (46150521), we get a palindrome (58655685).

The spelling of 12505164 in words is "twelve million, five hundred five thousand, one hundred sixty-four".