4023161 has 2 divisors, whose sum is σ = 4023162. Its totient is φ = 4023160.

The previous prime is 4023127. The next prime is 4023163. The reversal of 4023161 is 1613204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4020025 + 3136 = 2005^2 + 56^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4023161 is a prime.

Together with 4023163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4023163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011580 + 2011581.

It is an arithmetic number, because the mean of its divisors is an integer number (2011581).

Almost surely, 2^4023161 is an apocalyptic number.

It is an amenable number.

4023161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023161 is an equidigital number, since it uses as much as digits as its factorization.

4023161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4023161 is about 2005.7818924300. The cubic root of 4023161 is about 159.0458973810.

Adding to 4023161 its reverse (1613204), we get a palindrome (5636365).

The spelling of 4023161 in words is "four million, twenty-three thousand, one hundred sixty-one".