1138171199 has 16 divisors (see below), whose sum is σ = 1316956320. Its totient is φ = 972149760.

The previous prime is 1138171163. The next prime is 1138171201. The reversal of 1138171199 is 9911718311.

It is not a de Polignac number, because 1138171199 - 2¹⁶ = 1138105663 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 (1138171499) 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, 109667 + ... + 119595.

It is an arithmetic number, because the mean of its divisors is an integer number (82309770).

Almost surely, 2^1138171199 is an apocalyptic number.

1138171199 is a deficient number, since it is larger than the sum of its proper divisors (178785121).

1138171199 is a wasteful number, since it uses less digits than its factorization.

1138171199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570.

The product of its digits is 13608, while the sum is 41.

The square root of 1138171199 is about 33736.7929566519. The cubic root of 1138171199 is about 1044.0850179464.

The spelling of 1138171199 in words is "one billion, one hundred thirty-eight million, one hundred seventy-one thousand, one hundred ninety-nine".