65112539 has 2 divisors, whose sum is σ = 65112540. Its totient is φ = 65112538.

The previous prime is 65112491. The next prime is 65112547. The reversal of 65112539 is 93521156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65112539 - 2²⁰ = 64063963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65112599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32556269 + 32556270.

It is an arithmetic number, because the mean of its divisors is an integer number (32556270).

Almost surely, 2^65112539 is an apocalyptic number.

65112539 is a deficient number, since it is larger than the sum of its proper divisors (1).

65112539 is an equidigital number, since it uses as much as digits as its factorization.

65112539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 32.

The square root of 65112539 is about 8069.2341024412. The cubic root of 65112539 is about 402.3044874310.

The spelling of 65112539 in words is "sixty-five million, one hundred twelve thousand, five hundred thirty-nine".