65102749 has 2 divisors, whose sum is σ = 65102750. Its totient is φ = 65102748.

The previous prime is 65102747. The next prime is 65102753. The reversal of 65102749 is 94720156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34222500 + 30880249 = 5850^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 65102749 - 2¹ = 65102747 is a prime.

Together with 65102747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65102747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32551374 + 32551375.

It is an arithmetic number, because the mean of its divisors is an integer number (32551375).

Almost surely, 2^65102749 is an apocalyptic number.

It is an amenable number.

65102749 is a deficient number, since it is larger than the sum of its proper divisors (1).

65102749 is an equidigital number, since it uses as much as digits as its factorization.

65102749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 65102749 is about 8068.6274545303. The cubic root of 65102749 is about 402.2843235813.

The spelling of 65102749 in words is "sixty-five million, one hundred two thousand, seven hundred forty-nine".