65141891 has 2 divisors, whose sum is σ = 65141892. Its totient is φ = 65141890.

The previous prime is 65141863. The next prime is 65141903. The reversal of 65141891 is 19814156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65141891 - 2¹⁸ = 64879747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65141591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32570945 + 32570946.

It is an arithmetic number, because the mean of its divisors is an integer number (32570946).

Almost surely, 2^65141891 is an apocalyptic number.

65141891 is a deficient number, since it is larger than the sum of its proper divisors (1).

65141891 is an equidigital number, since it uses as much as digits as its factorization.

65141891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 35.

The square root of 65141891 is about 8071.0526574915. The cubic root of 65141891 is about 402.3649297952.

The spelling of 65141891 in words is "sixty-five million, one hundred forty-one thousand, eight hundred ninety-one".