65036239 has 2 divisors, whose sum is σ = 65036240. Its totient is φ = 65036238.

The previous prime is 65036177. The next prime is 65036243. The reversal of 65036239 is 93263056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65036239 - 2¹¹ = 65034191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65030239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32518119 + 32518120.

It is an arithmetic number, because the mean of its divisors is an integer number (32518120).

Almost surely, 2^65036239 is an apocalyptic number.

65036239 is a deficient number, since it is larger than the sum of its proper divisors (1).

65036239 is an equidigital number, since it uses as much as digits as its factorization.

65036239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 65036239 is about 8064.5048825083. The cubic root of 65036239 is about 402.1472835567.

The spelling of 65036239 in words is "sixty-five million, thirty-six thousand, two hundred thirty-nine".