4202161 has 2 divisors, whose sum is σ = 4202162. Its totient is φ = 4202160.

The previous prime is 4202153. The next prime is 4202167. The reversal of 4202161 is 1612024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117025 + 2085136 = 1455^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 4202161 - 2³ = 4202153 is a prime.

It is not a weakly prime, because it can be changed into another prime (4202167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101080 + 2101081.

It is an arithmetic number, because the mean of its divisors is an integer number (2101081).

Almost surely, 2^4202161 is an apocalyptic number.

It is an amenable number.

4202161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4202161 is an equidigital number, since it uses as much as digits as its factorization.

4202161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 4202161 is about 2049.9173154057. The cubic root of 4202161 is about 161.3705314397.

Adding to 4202161 its reverse (1612024), we get a palindrome (5814185).

The spelling of 4202161 in words is "four million, two hundred two thousand, one hundred sixty-one".