4121849 has 2 divisors, whose sum is σ = 4121850. Its totient is φ = 4121848.

The previous prime is 4121839. The next prime is 4121861. The reversal of 4121849 is 9481214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3356224 + 765625 = 1832^2 + 875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4121849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4121809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060924 + 2060925.

It is an arithmetic number, because the mean of its divisors is an integer number (2060925).

Almost surely, 2^4121849 is an apocalyptic number.

It is an amenable number.

4121849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121849 is an equidigital number, since it uses as much as digits as its factorization.

4121849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 4121849 is about 2030.2337303867. The cubic root of 4121849 is about 160.3358699735.

The spelling of 4121849 in words is "four million, one hundred twenty-one thousand, eight hundred forty-nine".