2165413 has 2 divisors, whose sum is σ = 2165414. Its totient is φ = 2165412.

The previous prime is 2165393. The next prime is 2165453. The reversal of 2165413 is 3145612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965604 + 199809 = 1402^2 + 447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2165413 - 2⁹ = 2164901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2165453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082706 + 1082707.

It is an arithmetic number, because the mean of its divisors is an integer number (1082707).

2^2165413 is an apocalyptic number.

It is an amenable number.

2165413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165413 is an equidigital number, since it uses as much as digits as its factorization.

2165413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 2165413 is about 1471.5342333769. The cubic root of 2165413 is about 129.3739723910.

The spelling of 2165413 in words is "two million, one hundred sixty-five thousand, four hundred thirteen".