65105279 has 2 divisors, whose sum is σ = 65105280. Its totient is φ = 65105278.

The previous prime is 65105207. The next prime is 65105309. The reversal of 65105279 is 97250156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65105279 - 2⁸ = 65105023 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 (65105179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32552639 + 32552640.

It is an arithmetic number, because the mean of its divisors is an integer number (32552640).

Almost surely, 2^65105279 is an apocalyptic number.

65105279 is a deficient number, since it is larger than the sum of its proper divisors (1).

65105279 is an equidigital number, since it uses as much as digits as its factorization.

65105279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 65105279 is about 8068.7842330800. The cubic root of 65105279 is about 402.2895346575.

The spelling of 65105279 in words is "sixty-five million, one hundred five thousand, two hundred seventy-nine".