1197931317 has 16 divisors (see below), whose sum is σ = 1784946240. Its totient is φ = 708310400.

The previous prime is 1197931309. The next prime is 1197931321. The reversal of 1197931317 is 7131397911.

It is a cyclic number.

It is not a de Polignac number, because 1197931317 - 2³ = 1197931309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197931327) 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 in 15 ways as a sum of consecutive naturals, for example, 441342 + ... + 444047.

It is an arithmetic number, because the mean of its divisors is an integer number (111559140).

Almost surely, 2^1197931317 is an apocalyptic number.

It is an amenable number.

1197931317 is a deficient number, since it is larger than the sum of its proper divisors (587014923).

1197931317 is a wasteful number, since it uses less digits than its factorization.

1197931317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885444.

The product of its digits is 35721, while the sum is 42.

The square root of 1197931317 is about 34611.1444046567. The cubic root of 1197931317 is about 1062.0475780302.

The spelling of 1197931317 in words is "one billion, one hundred ninety-seven million, nine hundred thirty-one thousand, three hundred seventeen".