65201243 has 2 divisors, whose sum is σ = 65201244. Its totient is φ = 65201242.

The previous prime is 65201233. The next prime is 65201261. The reversal of 65201243 is 34210256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65201243 - 2⁸ = 65200987 is a prime.

It is not a weakly prime, because it can be changed into another prime (65201233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32600621 + 32600622.

It is an arithmetic number, because the mean of its divisors is an integer number (32600622).

Almost surely, 2^65201243 is an apocalyptic number.

65201243 is a deficient number, since it is larger than the sum of its proper divisors (1).

65201243 is an equidigital number, since it uses as much as digits as its factorization.

65201243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 65201243 is about 8074.7286641719. The cubic root of 65201243 is about 402.4870934483.

Adding to 65201243 its reverse (34210256), we get a palindrome (99411499).

The spelling of 65201243 in words is "sixty-five million, two hundred one thousand, two hundred forty-three".