65145917 has 2 divisors, whose sum is σ = 65145918. Its totient is φ = 65145916.

The previous prime is 65145893. The next prime is 65145967. The reversal of 65145917 is 71954156.

65145917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54479161 + 10666756 = 7381^2 + 3266^2 .

It is a cyclic number.

It is not a de Polignac number, because 65145917 - 2¹⁶ = 65080381 is a prime.

It is a Chen prime.

It is equal to p_3848636 and since 65145917 and 3848636 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65145967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32572958 + 32572959.

It is an arithmetic number, because the mean of its divisors is an integer number (32572959).

Almost surely, 2^65145917 is an apocalyptic number.

It is an amenable number.

65145917 is a deficient number, since it is larger than the sum of its proper divisors (1).

65145917 is an equidigital number, since it uses as much as digits as its factorization.

65145917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 38.

The square root of 65145917 is about 8071.3020634839. The cubic root of 65145917 is about 402.3732188178.

The spelling of 65145917 in words is "sixty-five million, one hundred forty-five thousand, nine hundred seventeen".