4115021 has 2 divisors, whose sum is σ = 4115022. Its totient is φ = 4115020.

The previous prime is 4115017. The next prime is 4115051. The reversal of 4115021 is 1205114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2937796 + 1177225 = 1714^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 4115021 - 2² = 4115017 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4114987 and 4115005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4115051) 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, 2057510 + 2057511.

It is an arithmetic number, because the mean of its divisors is an integer number (2057511).

Almost surely, 2^4115021 is an apocalyptic number.

It is an amenable number.

4115021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4115021 is an equidigital number, since it uses as much as digits as its factorization.

4115021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 4115021 is about 2028.5514536240. The cubic root of 4115021 is about 160.2472868814.

The spelling of 4115021 in words is "four million, one hundred fifteen thousand, twenty-one".