12253145 has 4 divisors (see below), whose sum is σ = 14703780. Its totient is φ = 9802512.

The previous prime is 12253133. The next prime is 12253147. The reversal of 12253145 is 54135221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5837056 + 6416089 = 2416^2 + 2533^2 .

It is a cyclic number.

It is not a de Polignac number, because 12253145 - 2¹⁴ = 12236761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12253145.

It is not an unprimeable number, because it can be changed into a prime (12253147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225310 + ... + 1225319.

It is an arithmetic number, because the mean of its divisors is an integer number (3675945).

Almost surely, 2^12253145 is an apocalyptic number.

It is an amenable number.

12253145 is a deficient number, since it is larger than the sum of its proper divisors (2450635).

12253145 is an equidigital number, since it uses as much as digits as its factorization.

12253145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450634.

The product of its digits is 1200, while the sum is 23.

The square root of 12253145 is about 3500.4492568812. The cubic root of 12253145 is about 230.5415405641.

Adding to 12253145 its reverse (54135221), we get a palindrome (66388366).

The spelling of 12253145 in words is "twelve million, two hundred fifty-three thousand, one hundred forty-five".