1315437287 has 2 divisors, whose sum is σ = 1315437288. Its totient is φ = 1315437286.

The previous prime is 1315437259. The next prime is 1315437307. The reversal of 1315437287 is 7827345131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1315437287 - 2⁸ = 1315437031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315437257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657718643 + 657718644.

It is an arithmetic number, because the mean of its divisors is an integer number (657718644).

Almost surely, 2^1315437287 is an apocalyptic number.

1315437287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315437287 is an equidigital number, since it uses as much as digits as its factorization.

1315437287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 1315437287 is about 36268.9576221870. The cubic root of 1315437287 is about 1095.6959322966.

The spelling of 1315437287 in words is "one billion, three hundred fifteen million, four hundred thirty-seven thousand, two hundred eighty-seven".