65143907 has 2 divisors, whose sum is σ = 65143908. Its totient is φ = 65143906.

The previous prime is 65143873. The next prime is 65143919. The reversal of 65143907 is 70934156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65143907 - 2¹⁶ = 65078371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65143937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32571953 + 32571954.

It is an arithmetic number, because the mean of its divisors is an integer number (32571954).

Almost surely, 2^65143907 is an apocalyptic number.

65143907 is a deficient number, since it is larger than the sum of its proper divisors (1).

65143907 is an equidigital number, since it uses as much as digits as its factorization.

65143907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 65143907 is about 8071.1775472975. The cubic root of 65143907 is about 402.3690805258.

The spelling of 65143907 in words is "sixty-five million, one hundred forty-three thousand, nine hundred seven".