65135801 has 2 divisors, whose sum is σ = 65135802. Its totient is φ = 65135800.

The previous prime is 65135767. The next prime is 65135803. The reversal of 65135801 is 10853156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62410000 + 2725801 = 7900^2 + 1651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65135801 is a prime.

Together with 65135803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65135803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32567900 + 32567901.

It is an arithmetic number, because the mean of its divisors is an integer number (32567901).

Almost surely, 2^65135801 is an apocalyptic number.

It is an amenable number.

65135801 is a deficient number, since it is larger than the sum of its proper divisors (1).

65135801 is an equidigital number, since it uses as much as digits as its factorization.

65135801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 65135801 is about 8070.6753744653. The cubic root of 65135801 is about 402.3523906095.

Adding to 65135801 its reverse (10853156), we get a palindrome (75988957).

The spelling of 65135801 in words is "sixty-five million, one hundred thirty-five thousand, eight hundred one".