2291138199 has 24 divisors (see below), whose sum is σ = 3981261440. Its totient is φ = 1240314768.

The previous prime is 2291138197. The next prime is 2291138203. The reversal of 2291138199 is 9918311922.

It is not a de Polignac number, because 2291138199 - 2¹ = 2291138197 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 (2291138197) 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 23 ways as a sum of consecutive naturals, for example, 955837 + ... + 958230.

Almost surely, 2^2291138199 is an apocalyptic number.

2291138199 is a deficient number, since it is larger than the sum of its proper divisors (1690123241).

2291138199 is a wasteful number, since it uses less digits than its factorization.

2291138199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914099 (or 1914096 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 2291138199 is about 47865.8354048062. The cubic root of 2291138199 is about 1318.3086308826.

The spelling of 2291138199 in words is "two billion, two hundred ninety-one million, one hundred thirty-eight thousand, one hundred ninety-nine".