12099252 has 48 divisors (see below), whose sum is σ = 31256064. Its totient is φ = 3612000.

The previous prime is 12099233. The next prime is 12099271. The reversal of 12099252 is 25299021.

It is an interprime number because it is at equal distance from previous prime (12099233) and next prime (12099271).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 8727 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (651168).

Almost surely, 2^12099252 is an apocalyptic number.

12099252 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 12099252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15628032).

12099252 is an abundant number, since it is smaller than the sum of its proper divisors (19156812).

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

12099252 is a wasteful number, since it uses less digits than its factorization.

12099252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12099252 is about 3478.3979070831. The cubic root of 12099252 is about 229.5723116906.

The spelling of 12099252 in words is "twelve million, ninety-nine thousand, two hundred fifty-two".