12251712 has 56 divisors (see below), whose sum is σ = 35368992. Its totient is φ = 3712000.

The previous prime is 12251677. The next prime is 12251719. The reversal of 12251712 is 21715221.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12251719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789 + ... + 5012.

Almost surely, 2^12251712 is an apocalyptic number.

12251712 is a gapful number since it is divisible by the number (12) 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 12251712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17684496).

12251712 is an abundant number, since it is smaller than the sum of its proper divisors (23117280).

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

12251712 is a wasteful number, since it uses less digits than its factorization.

12251712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5827 (or 5817 counting only the distinct ones).

The product of its digits is 280, while the sum is 21.

The square root of 12251712 is about 3500.2445628841. The cubic root of 12251712 is about 230.5325529693.

Adding to 12251712 its reverse (21715221), we get a palindrome (33966933).

The spelling of 12251712 in words is "twelve million, two hundred fifty-one thousand, seven hundred twelve".