2161301 has 2 divisors, whose sum is σ = 2161302. Its totient is φ = 2161300.

The previous prime is 2161297. The next prime is 2161303. The reversal of 2161301 is 1031612.

2161301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100401 + 1060900 = 1049^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 2161301 - 2² = 2161297 is a prime.

It is a Sophie Germain prime.

Together with 2161303, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2161303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080650 + 1080651.

It is an arithmetic number, because the mean of its divisors is an integer number (1080651).

2^2161301 is an apocalyptic number.

It is an amenable number.

2161301 is a deficient number, since it is larger than the sum of its proper divisors (1).

2161301 is an equidigital number, since it uses as much as digits as its factorization.

2161301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2161301 is about 1470.1363882307. The cubic root of 2161301 is about 129.2920291517.

Adding to 2161301 its reverse (1031612), we get a palindrome (3192913).

The spelling of 2161301 in words is "two million, one hundred sixty-one thousand, three hundred one".