4183121 has 2 divisors, whose sum is σ = 4183122. Its totient is φ = 4183120.

The previous prime is 4183111. The next prime is 4183133. The reversal of 4183121 is 1213814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4157521 + 25600 = 2039^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 4183121 - 2⁶ = 4183057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4183093 and 4183102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4183111) 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, 2091560 + 2091561.

It is an arithmetic number, because the mean of its divisors is an integer number (2091561).

Almost surely, 2^4183121 is an apocalyptic number.

It is an amenable number.

4183121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4183121 is an equidigital number, since it uses as much as digits as its factorization.

4183121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 20.

The square root of 4183121 is about 2045.2679531054. The cubic root of 4183121 is about 161.1264390050.

Adding to 4183121 its reverse (1213814), we get a palindrome (5396935).

The spelling of 4183121 in words is "four million, one hundred eighty-three thousand, one hundred twenty-one".