65000243 has 16 divisors (see below), whose sum is σ = 81409536. Its totient is φ = 50418240.

The previous prime is 65000233. The next prime is 65000249. The reversal of 65000243 is 34200056.

It is a cyclic number.

It is not a de Polignac number, because 65000243 - 2⁶ = 65000179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65000249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16130 + ... + 19752.

It is an arithmetic number, because the mean of its divisors is an integer number (5088096).

Almost surely, 2^65000243 is an apocalyptic number.

65000243 is a deficient number, since it is larger than the sum of its proper divisors (16409293).

65000243 is a wasteful number, since it uses less digits than its factorization.

65000243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 65000243 is about 8062.2728185047. The cubic root of 65000243 is about 402.0730769026.

Adding to 65000243 its reverse (34200056), we get a palindrome (99200299).

The spelling of 65000243 in words is "sixty-five million, two hundred forty-three", and thus it is an aban number.