1315632719 has 2 divisors, whose sum is σ = 1315632720. Its totient is φ = 1315632718.

The previous prime is 1315632707. The next prime is 1315632739. The reversal of 1315632719 is 9172365131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315632719 is a prime.

It is a super-2 number, since 2×1315632719² = 3461778902606665922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315632739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657816359 + 657816360.

It is an arithmetic number, because the mean of its divisors is an integer number (657816360).

Almost surely, 2^1315632719 is an apocalyptic number.

1315632719 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315632719 is an equidigital number, since it uses as much as digits as its factorization.

1315632719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 1315632719 is about 36271.6517269341. The cubic root of 1315632719 is about 1095.7501914255.

The spelling of 1315632719 in words is "one billion, three hundred fifteen million, six hundred thirty-two thousand, seven hundred nineteen".