99188199 has 32 divisors (see below), whose sum is σ = 160942080. Its totient is φ = 59875200.

The previous prime is 99188197. The next prime is 99188203.

99188199 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99188199 - 2¹ = 99188197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99188197) 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 31 ways as a sum of consecutive naturals, for example, 99594 + ... + 100584.

It is an arithmetic number, because the mean of its divisors is an integer number (5029440).

Almost surely, 2^99188199 is an apocalyptic number.

99188199 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99188199 is a deficient number, since it is larger than the sum of its proper divisors (61753881).

99188199 is a wasteful number, since it uses less digits than its factorization.

99188199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1342 counting only the distinct ones).

The product of its digits is 419904, while the sum is 54.

The square root of 99188199 is about 9959.3272363147. The cubic root of 99188199 is about 462.8994536816.

The spelling of 99188199 in words is "ninety-nine million, one hundred eighty-eight thousand, one hundred ninety-nine".