65243293 has 2 divisors, whose sum is σ = 65243294. Its totient is φ = 65243292.

The previous prime is 65243291. The next prime is 65243303. The reversal of 65243293 is 39234256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34363044 + 30880249 = 5862^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 65243293 - 2¹ = 65243291 is a prime.

Together with 65243291, 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 (65243291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32621646 + 32621647.

It is an arithmetic number, because the mean of its divisors is an integer number (32621647).

Almost surely, 2^65243293 is an apocalyptic number.

It is an amenable number.

65243293 is a deficient number, since it is larger than the sum of its proper divisors (1).

65243293 is an equidigital number, since it uses as much as digits as its factorization.

65243293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 34.

The square root of 65243293 is about 8077.3320471552. The cubic root of 65243293 is about 402.5735996989.

It can be divided in two parts, 65243 and 293, that added together give a 16-th power (65536 = 2¹⁶).

The spelling of 65243293 in words is "sixty-five million, two hundred forty-three thousand, two hundred ninety-three".