2665241 has 2 divisors, whose sum is σ = 2665242. Its totient is φ = 2665240.

The previous prime is 2665237. The next prime is 2665249. The reversal of 2665241 is 1425662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2262016 + 403225 = 1504^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665241 - 2² = 2665237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₁₉₄₃₀₉ and since 2665241 and 194309 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2665241.

It is not a weakly prime, because it can be changed into another prime (2665249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332620 + 1332621.

It is an arithmetic number, because the mean of its divisors is an integer number (1332621).

2^2665241 is an apocalyptic number.

It is an amenable number.

2665241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665241 is an equidigital number, since it uses as much as digits as its factorization.

2665241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 2665241 is about 1632.5565840117. The cubic root of 2665241 is about 138.6475379134.

The spelling of 2665241 in words is "two million, six hundred sixty-five thousand, two hundred forty-one".