12280153 has 4 divisors (see below), whose sum is σ = 12511908. Its totient is φ = 12048400.

The previous prime is 12280141. The next prime is 12280157. The reversal of 12280153 is 35108221.

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 6365529 + 5914624 = 2523^2 + 2432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12280153 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12280157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115798 + ... + 115903.

It is an arithmetic number, because the mean of its divisors is an integer number (3127977).

Almost surely, 2^12280153 is an apocalyptic number.

It is an amenable number.

12280153 is a deficient number, since it is larger than the sum of its proper divisors (231755).

12280153 is an equidigital number, since it uses as much as digits as its factorization.

12280153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231754.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12280153 is about 3504.3049239471. The cubic root of 12280153 is about 230.7108004233.

Adding to 12280153 its reverse (35108221), we get a palindrome (47388374).

The spelling of 12280153 in words is "twelve million, two hundred eighty thousand, one hundred fifty-three".