65415313 has 2 divisors, whose sum is σ = 65415314. Its totient is φ = 65415312.

The previous prime is 65415283. The next prime is 65415319. The reversal of 65415313 is 31351456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54346384 + 11068929 = 7372^2 + 3327^2 .

It is a cyclic number.

It is not a de Polignac number, because 65415313 - 2⁹ = 65414801 is a prime.

It is not a weakly prime, because it can be changed into another prime (65415319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32707656 + 32707657.

It is an arithmetic number, because the mean of its divisors is an integer number (32707657).

Almost surely, 2^65415313 is an apocalyptic number.

It is an amenable number.

65415313 is a deficient number, since it is larger than the sum of its proper divisors (1).

65415313 is an equidigital number, since it uses as much as digits as its factorization.

65415313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 65415313 is about 8087.9733555446. The cubic root of 65415313 is about 402.9270967633.

Adding to 65415313 its reverse (31351456), we get a palindrome (96766769).

The spelling of 65415313 in words is "sixty-five million, four hundred fifteen thousand, three hundred thirteen".