1315297 has 2 divisors, whose sum is σ = 1315298. Its totient is φ = 1315296.

The previous prime is 1315291. The next prime is 1315309. The reversal of 1315297 is 7925131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1308736 + 6561 = 1144^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315297 - 2³ = 1315289 is a prime.

It is an Ulam number.

1315297 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1315291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657648 + 657649.

It is an arithmetic number, because the mean of its divisors is an integer number (657649).

2^1315297 is an apocalyptic number.

It is an amenable number.

1315297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315297 is an equidigital number, since it uses as much as digits as its factorization.

1315297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 28.

The square root of 1315297 is about 1146.8639849607. The cubic root of 1315297 is about 109.5656980139.

The spelling of 1315297 in words is "one million, three hundred fifteen thousand, two hundred ninety-seven".