1315004657 has 2 divisors, whose sum is σ = 1315004658. Its totient is φ = 1315004656.

The previous prime is 1315004651. The next prime is 1315004683. The reversal of 1315004657 is 7564005131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986525281 + 328479376 = 31409^2 + 18124^2 .

It is an emirp because it is prime and its reverse (7564005131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1315004657 - 2⁸ = 1315004401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1315004651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657502328 + 657502329.

It is an arithmetic number, because the mean of its divisors is an integer number (657502329).

Almost surely, 2^1315004657 is an apocalyptic number.

It is an amenable number.

1315004657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315004657 is an equidigital number, since it uses as much as digits as its factorization.

1315004657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1315004657 is about 36262.9929404620. The cubic root of 1315004657 is about 1095.5757991382.

Adding to 1315004657 its reverse (7564005131), we get a palindrome (8879009788).

The spelling of 1315004657 in words is "one billion, three hundred fifteen million, four thousand, six hundred fifty-seven".