2685121 has 2 divisors, whose sum is σ = 2685122. Its totient is φ = 2685120.

The previous prime is 2685113. The next prime is 2685169. The reversal of 2685121 is 1215862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1809025 + 876096 = 1345^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2685121 - 2³ = 2685113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2685101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342560 + 1342561.

It is an arithmetic number, because the mean of its divisors is an integer number (1342561).

2^2685121 is an apocalyptic number.

It is an amenable number.

2685121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685121 is an equidigital number, since it uses as much as digits as its factorization.

2685121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 2685121 is about 1638.6338822324. The cubic root of 2685121 is about 138.9914077811.

The spelling of 2685121 in words is "two million, six hundred eighty-five thousand, one hundred twenty-one".