12251772 has 72 divisors (see below), whose sum is σ = 34122816. Its totient is φ = 3682944.

The previous prime is 12251761. The next prime is 12251797. The reversal of 12251772 is 27715221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21718 + ... + 22274.

It is an arithmetic number, because the mean of its divisors is an integer number (473928).

Almost surely, 2^12251772 is an apocalyptic number.

12251772 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 12251772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17061408).

12251772 is an abundant number, since it is smaller than the sum of its proper divisors (21871044).

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

12251772 is a wasteful number, since it uses less digits than its factorization.

12251772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 622 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 12251772 is about 3500.2531337033. The cubic root of 12251772 is about 230.5329292957.

Adding to 12251772 its reverse (27715221), we get a palindrome (39966993).

The spelling of 12251772 in words is "twelve million, two hundred fifty-one thousand, seven hundred seventy-two".