12072251 has 2 divisors, whose sum is σ = 12072252. Its totient is φ = 12072250.

The previous prime is 12072241. The next prime is 12072253. The reversal of 12072251 is 15227021.

It is a strong prime.

It is an emirp because it is prime and its reverse (15227021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12072251 - 2⁶ = 12072187 is a prime.

Together with 12072253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12072253) 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 as a sum of consecutive naturals, namely, 6036125 + 6036126.

It is an arithmetic number, because the mean of its divisors is an integer number (6036126).

Almost surely, 2^12072251 is an apocalyptic number.

12072251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12072251 is an equidigital number, since it uses as much as digits as its factorization.

12072251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12072251 is about 3474.5144984587. The cubic root of 12072251 is about 229.4014113529.

Adding to 12072251 its reverse (15227021), we get a palindrome (27299272).

The spelling of 12072251 in words is "twelve million, seventy-two thousand, two hundred fifty-one".