65320313 has 2 divisors, whose sum is σ = 65320314. Its totient is φ = 65320312.

The previous prime is 65320303. The next prime is 65320319. The reversal of 65320313 is 31302356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44049769 + 21270544 = 6637^2 + 4612^2 .

It is a cyclic number.

It is not a de Polignac number, because 65320313 - 2¹² = 65316217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65320319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32660156 + 32660157.

It is an arithmetic number, because the mean of its divisors is an integer number (32660157).

Almost surely, 2^65320313 is an apocalyptic number.

It is an amenable number.

65320313 is a deficient number, since it is larger than the sum of its proper divisors (1).

65320313 is an equidigital number, since it uses as much as digits as its factorization.

65320313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 65320313 is about 8082.0983042772. The cubic root of 65320313 is about 402.7319507172.

Adding to 65320313 its reverse (31302356), we get a palindrome (96622669).

The spelling of 65320313 in words is "sixty-five million, three hundred twenty thousand, three hundred thirteen".