12181260 has 192 divisors, whose sum is σ = 44255232. Its totient is φ = 2433024.

The previous prime is 12181259. The next prime is 12181271. The reversal of 12181260 is 6218121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125532 + ... + 125628.

It is an arithmetic number, because the mean of its divisors is an integer number (230496).

Almost surely, 2^12181260 is an apocalyptic number.

12181260 is a gapful number since it is divisible by the number (10) 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 12181260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22127616).

12181260 is an abundant number, since it is smaller than the sum of its proper divisors (32073972).

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

12181260 is a wasteful number, since it uses less digits than its factorization.

12181260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 12181260 is about 3490.1661851551. The cubic root of 12181260 is about 230.0898199912.

Adding to 12181260 its reverse (6218121), we get a palindrome (18399381).

The spelling of 12181260 in words is "twelve million, one hundred eighty-one thousand, two hundred sixty".