1197161318 has 16 divisors (see below), whose sum is σ = 1902021264. Its totient is φ = 563178240.

The previous prime is 1197161281. The next prime is 1197161327. The reversal of 1197161318 is 8131617911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171578 + ... + 178418.

It is an arithmetic number, because the mean of its divisors is an integer number (118876329).

Almost surely, 2^1197161318 is an apocalyptic number.

1197161318 is a deficient number, since it is larger than the sum of its proper divisors (704859946).

1197161318 is a wasteful number, since it uses less digits than its factorization.

1197161318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12007.

The product of its digits is 9072, while the sum is 38.

The square root of 1197161318 is about 34600.0190462375. The cubic root of 1197161318 is about 1061.8199770988.

The spelling of 1197161318 in words is "one billion, one hundred ninety-seven million, one hundred sixty-one thousand, three hundred eighteen".