12241387 has 2 divisors, whose sum is σ = 12241388. Its totient is φ = 12241386.

The previous prime is 12241363. The next prime is 12241391. The reversal of 12241387 is 78314221.

It is a strong prime.

It is an emirp because it is prime and its reverse (78314221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12241387 - 2¹⁹ = 11717099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12241337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120693 + 6120694.

It is an arithmetic number, because the mean of its divisors is an integer number (6120694).

Almost surely, 2^12241387 is an apocalyptic number.

12241387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12241387 is an equidigital number, since it uses as much as digits as its factorization.

12241387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 12241387 is about 3498.7693550733. The cubic root of 12241387 is about 230.4677751498.

It can be divided in two parts, 122413 and 87, that added together give a square (122500 = 350²).

The spelling of 12241387 in words is "twelve million, two hundred forty-one thousand, three hundred eighty-seven".