99134191 has 16 divisors (see below), whose sum is σ = 118994400. Its totient is φ = 81589248.

The previous prime is 99134183. The next prime is 99134201. The reversal of 99134191 is 19143199.

It is not a de Polignac number, because 99134191 - 2³ = 99134183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99134191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99134111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7606 + ... + 16003.

It is an arithmetic number, because the mean of its divisors is an integer number (7437150).

Almost surely, 2^99134191 is an apocalyptic number.

99134191 is a deficient number, since it is larger than the sum of its proper divisors (19860209).

99134191 is a wasteful number, since it uses less digits than its factorization.

99134191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23658.

The product of its digits is 8748, while the sum is 37.

The square root of 99134191 is about 9956.6154389933. The cubic root of 99134191 is about 462.8154221373.

The spelling of 99134191 in words is "ninety-nine million, one hundred thirty-four thousand, one hundred ninety-one".