2539289 has 2 divisors, whose sum is σ = 2539290. Its totient is φ = 2539288.

The previous prime is 2539267. The next prime is 2539309. The reversal of 2539289 is 9829352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2274064 + 265225 = 1508^2 + 515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2539289 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2539189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269644 + 1269645.

It is an arithmetic number, because the mean of its divisors is an integer number (1269645).

2^2539289 is an apocalyptic number.

It is an amenable number.

2539289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2539289 is an equidigital number, since it uses as much as digits as its factorization.

2539289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 2539289 is about 1593.5146689002. The cubic root of 2539289 is about 136.4281668854.

The spelling of 2539289 in words is "two million, five hundred thirty-nine thousand, two hundred eighty-nine".