2665237 has 2 divisors, whose sum is σ = 2665238. Its totient is φ = 2665236.

The previous prime is 2665231. The next prime is 2665241. The reversal of 2665237 is 7325662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2531281 + 133956 = 1591^2 + 366^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665237 - 2⁷ = 2665109 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹³ + 6⁷ + 6⁷ + 5 + 2²¹ + 3² + 7 .

It is a junction number, because it is equal to n+sod(n) for n = 2665199 and 2665208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332618 + 1332619.

It is an arithmetic number, because the mean of its divisors is an integer number (1332619).

2^2665237 is an apocalyptic number.

It is an amenable number.

2665237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665237 is an equidigital number, since it uses as much as digits as its factorization.

2665237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 2665237 is about 1632.5553589389. Note that the first 3 decimals coincide. The cubic root of 2665237 is about 138.6474685525.

The spelling of 2665237 in words is "two million, six hundred sixty-five thousand, two hundred thirty-seven".