1193218849 has 3 divisors (see below), whose sum is σ = 1193253393. Its totient is φ = 1193184306.

The previous prime is 1193218823. The next prime is 1193218853. The reversal of 1193218849 is 9488123911.

The square root of 1193218849 is 34543.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1193218849 - 2¹⁵ = 1193186081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1193218799 and 1193218808.

It is not an unprimeable number, because it can be changed into a prime (1193218889) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 17272 + ... + 51814.

It is an arithmetic number, because the mean of its divisors is an integer number (397751131).

Almost surely, 2^1193218849 is an apocalyptic number.

1193218849 is the 34543-rd square number.

1193218849 is the 17272-nd centered octagonal number.

It is an amenable number.

1193218849 is a deficient number, since it is larger than the sum of its proper divisors (34544).

1193218849 is an frugal number, since it uses more digits than its factorization.

1193218849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69086 (or 34543 counting only the distinct ones).

The product of its digits is 124416, while the sum is 46.

The cubic root of 1193218849 is about 1060.6531067691.

The spelling of 1193218849 in words is "one billion, one hundred ninety-three million, two hundred eighteen thousand, eight hundred forty-nine".