65012279 has 2 divisors, whose sum is σ = 65012280. Its totient is φ = 65012278.

The previous prime is 65012257. The next prime is 65012303. The reversal of 65012279 is 97221056.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65012279 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 (65012209) 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, 32506139 + 32506140.

It is an arithmetic number, because the mean of its divisors is an integer number (32506140).

Almost surely, 2^65012279 is an apocalyptic number.

65012279 is a deficient number, since it is larger than the sum of its proper divisors (1).

65012279 is an equidigital number, since it uses as much as digits as its factorization.

65012279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 65012279 is about 8063.0192235911. The cubic root of 65012279 is about 402.0978924656.

The spelling of 65012279 in words is "sixty-five million, twelve thousand, two hundred seventy-nine".