12251361 has 4 divisors (see below), whose sum is σ = 16335152. Its totient is φ = 8167572.

The previous prime is 12251359. The next prime is 12251363. The reversal of 12251361 is 16315221.

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.

It is an interprime number because it is at equal distance from previous prime (12251359) and next prime (12251363).

It is not a de Polignac number, because 12251361 - 2¹ = 12251359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12251363) 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, 2041891 + ... + 2041896.

It is an arithmetic number, because the mean of its divisors is an integer number (4083788).

Almost surely, 2^12251361 is an apocalyptic number.

It is an amenable number.

12251361 is a deficient number, since it is larger than the sum of its proper divisors (4083791).

12251361 is an equidigital number, since it uses as much as digits as its factorization.

12251361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083790.

The product of its digits is 360, while the sum is 21.

The square root of 12251361 is about 3500.1944231714. The cubic root of 12251361 is about 230.5303514348.

Adding to 12251361 its reverse (16315221), we get a palindrome (28566582).

The spelling of 12251361 in words is "twelve million, two hundred fifty-one thousand, three hundred sixty-one".