12253121 has 4 divisors (see below), whose sum is σ = 12261552. Its totient is φ = 12244692.

The previous prime is 12253117. The next prime is 12253127. The reversal of 12253121 is 12135221.

It is a happy number.

12253121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12253121 - 2² = 12253117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12253121.

It is not an unprimeable number, because it can be changed into a prime (12253127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (3065388).

Almost surely, 2^12253121 is an apocalyptic number.

It is an amenable number.

12253121 is a deficient number, since it is larger than the sum of its proper divisors (8431).

12253121 is an equidigital number, since it uses as much as digits as its factorization.

12253121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8430.

The product of its digits is 120, while the sum is 17.

The square root of 12253121 is about 3500.4458287481. The cubic root of 12253121 is about 230.5413900449.

Adding to 12253121 its reverse (12135221), we get a palindrome (24388342).

The spelling of 12253121 in words is "twelve million, two hundred fifty-three thousand, one hundred twenty-one".