1118997199 has 8 divisors (see below), whose sum is σ = 1126344960. Its totient is φ = 1111661976.

The previous prime is 1118997193. The next prime is 1118997221. The reversal of 1118997199 is 9917998111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1118997199 - 2⁵ = 1118997167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118997193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231562 + ... + 236344.

It is an arithmetic number, because the mean of its divisors is an integer number (140793120).

Almost surely, 2^1118997199 is an apocalyptic number.

1118997199 is a deficient number, since it is larger than the sum of its proper divisors (7347761).

1118997199 is a wasteful number, since it uses less digits than its factorization.

1118997199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269.

The product of its digits is 367416, while the sum is 55.

The square root of 1118997199 is about 33451.4155006929. The cubic root of 1118997199 is about 1038.1887850663.

The spelling of 1118997199 in words is "one billion, one hundred eighteen million, nine hundred ninety-seven thousand, one hundred ninety-nine".