65136142241 has 2 divisors, whose sum is σ = 65136142242. Its totient is φ = 65136142240.

The previous prime is 65136142231. The next prime is 65136142273. The reversal of 65136142241 is 14224163156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53605677841 + 11530464400 = 231529^2 + 107380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65136142241 is a prime.

It is not a weakly prime, because it can be changed into another prime (65136142231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32568071120 + 32568071121.

It is an arithmetic number, because the mean of its divisors is an integer number (32568071121).

Almost surely, 2^65136142241 is an apocalyptic number.

It is an amenable number.

65136142241 is a deficient number, since it is larger than the sum of its proper divisors (1).

65136142241 is an equidigital number, since it uses as much as digits as its factorization.

65136142241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The spelling of 65136142241 in words is "sixty-five billion, one hundred thirty-six million, one hundred forty-two thousand, two hundred forty-one".