12152420 has 48 divisors (see below), whose sum is σ = 29664768. Its totient is φ = 4095360.

The previous prime is 12152417. The next prime is 12152443. The reversal of 12152420 is 2425121.

It is an unprimeable number.

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, 7829 + ... + 9251.

It is an arithmetic number, because the mean of its divisors is an integer number (618016).

Almost surely, 2^12152420 is an apocalyptic number.

12152420 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 12152420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14832384).

12152420 is an abundant number, since it is smaller than the sum of its proper divisors (17512348).

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

12152420 is a wasteful number, since it uses less digits than its factorization.

12152420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1498 counting only the distinct ones).

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

The square root of 12152420 is about 3486.0321283660. The cubic root of 12152420 is about 229.9080918227.

Adding to 12152420 its reverse (2425121), we get a palindrome (14577541).

The spelling of 12152420 in words is "twelve million, one hundred fifty-two thousand, four hundred twenty".