1317424387 has 2 divisors, whose sum is σ = 1317424388. Its totient is φ = 1317424386.

The previous prime is 1317424373. The next prime is 1317424403. The reversal of 1317424387 is 7834247131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1317424387 - 2¹¹ = 1317422339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1317424307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658712193 + 658712194.

It is an arithmetic number, because the mean of its divisors is an integer number (658712194).

Almost surely, 2^1317424387 is an apocalyptic number.

1317424387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317424387 is an equidigital number, since it uses as much as digits as its factorization.

1317424387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 1317424387 is about 36296.3412343448. The cubic root of 1317424387 is about 1096.2473742660.

The spelling of 1317424387 in words is "one billion, three hundred seventeen million, four hundred twenty-four thousand, three hundred eighty-seven".