12230261 has 4 divisors (see below), whose sum is σ = 12237312. Its totient is φ = 12223212.

The previous prime is 12230233. The next prime is 12230353. The reversal of 12230261 is 16203221.

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 a de Polignac number, because none of the positive numbers 2^k-12230261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230221) 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, 1100 + ... + 5066.

It is an arithmetic number, because the mean of its divisors is an integer number (3059328).

Almost surely, 2^12230261 is an apocalyptic number.

It is an amenable number.

12230261 is a deficient number, since it is larger than the sum of its proper divisors (7051).

12230261 is an equidigital number, since it uses as much as digits as its factorization.

12230261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12230261 is about 3497.1790059990. The cubic root of 12230261 is about 230.3979311659.

Adding to 12230261 its reverse (16203221), we get a palindrome (28433482).

The spelling of 12230261 in words is "twelve million, two hundred thirty thousand, two hundred sixty-one".