1317207617 has 16 divisors (see below), whose sum is σ = 1522996992. Its totient is φ = 1125899520.

The previous prime is 1317207611. The next prime is 1317207629. The reversal of 1317207617 is 7167027131.

It is a cyclic number.

It is not a de Polignac number, because 1317207617 - 2¹⁸ = 1316945473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1317207611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223928 + ... + 229734.

It is an arithmetic number, because the mean of its divisors is an integer number (95187312).

Almost surely, 2^1317207617 is an apocalyptic number.

1317207617 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1317207617 is a deficient number, since it is larger than the sum of its proper divisors (205789375).

1317207617 is a wasteful number, since it uses less digits than its factorization.

1317207617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7048.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 1317207617 is about 36293.3549978505. The cubic root of 1317207617 is about 1096.1872451787.

The spelling of 1317207617 in words is "one billion, three hundred seventeen million, two hundred seven thousand, six hundred seventeen".