1465520317 has 2 divisors, whose sum is σ = 1465520318. Its totient is φ = 1465520316.

The previous prime is 1465520291. The next prime is 1465520321. The reversal of 1465520317 is 7130255641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1222970841 + 242549476 = 34971^2 + 15574^2 .

It is an emirp because it is prime and its reverse (7130255641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1465520317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1465520327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 732760158 + 732760159.

It is an arithmetic number, because the mean of its divisors is an integer number (732760159).

Almost surely, 2^1465520317 is an apocalyptic number.

It is an amenable number.

1465520317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1465520317 is an equidigital number, since it uses as much as digits as its factorization.

1465520317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1465520317 is about 38282.1148449246. The cubic root of 1465520317 is about 1135.8751921524.

Adding to 1465520317 its reverse (7130255641), we get a palindrome (8595775958).

The spelling of 1465520317 in words is "one billion, four hundred sixty-five million, five hundred twenty thousand, three hundred seventeen".