1315071587 has 2 divisors, whose sum is σ = 1315071588. Its totient is φ = 1315071586.

The previous prime is 1315071581. The next prime is 1315071629. The reversal of 1315071587 is 7851705131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315071587 - 2⁶ = 1315071523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1315071587.

It is not a weakly prime, because it can be changed into another prime (1315071581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657535793 + 657535794.

It is an arithmetic number, because the mean of its divisors is an integer number (657535794).

Almost surely, 2^1315071587 is an apocalyptic number.

1315071587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315071587 is an equidigital number, since it uses as much as digits as its factorization.

1315071587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 38.

The square root of 1315071587 is about 36263.9157703632. The cubic root of 1315071587 is about 1095.5943860544.

The spelling of 1315071587 in words is "one billion, three hundred fifteen million, seventy-one thousand, five hundred eighty-seven".