12253500 has 144 divisors (see below), whose sum is σ = 44291520. Its totient is φ = 2793600.

The previous prime is 12253487. The next prime is 12253513. The reversal of 12253500 is 535221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12253487) and next prime (12253513).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31306 + ... + 31694.

It is an arithmetic number, because the mean of its divisors is an integer number (307580).

Almost surely, 2^12253500 is an apocalyptic number.

12253500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 3500×3501.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12253500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22145760).

12253500 is an abundant number, since it is smaller than the sum of its proper divisors (32038020).

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

12253500 is a wasteful number, since it uses less digits than its factorization.

12253500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 12253500 is about 3500.4999642908. The cubic root of 12253500 is about 230.5437669709.

Adding to 12253500 its reverse (535221), we get a palindrome (12788721).

The spelling of 12253500 in words is "twelve million, two hundred fifty-three thousand, five hundred".