65741813 has 2 divisors, whose sum is σ = 65741814. Its totient is φ = 65741812.

The previous prime is 65741777. The next prime is 65741831. The reversal of 65741813 is 31814756.

Together with next prime (65741831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51739249 + 14002564 = 7193^2 + 3742^2 .

It is a cyclic number.

It is not a de Polignac number, because 65741813 - 2¹⁶ = 65676277 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 (65741413) 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, 32870906 + 32870907.

It is an arithmetic number, because the mean of its divisors is an integer number (32870907).

Almost surely, 2^65741813 is an apocalyptic number.

It is an amenable number.

65741813 is a deficient number, since it is larger than the sum of its proper divisors (1).

65741813 is an equidigital number, since it uses as much as digits as its factorization.

65741813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 65741813 is about 8108.1325223506. The cubic root of 65741813 is about 403.5963459191.

The spelling of 65741813 in words is "sixty-five million, seven hundred forty-one thousand, eight hundred thirteen".