99131198 has 8 divisors (see below), whose sum is σ = 149682000. Its totient is φ = 49237200.

The previous prime is 99131183. The next prime is 99131203. The reversal of 99131198 is 89113199.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 163823 + ... + 164426.

It is an arithmetic number, because the mean of its divisors is an integer number (18710250).

Almost surely, 2^99131198 is an apocalyptic number.

99131198 is a deficient number, since it is larger than the sum of its proper divisors (50550802).

99131198 is a wasteful number, since it uses less digits than its factorization.

99131198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328402.

The product of its digits is 17496, while the sum is 41.

The square root of 99131198 is about 9956.4651357799. The cubic root of 99131198 is about 462.8107644086.

It can be divided in two parts, 9913 and 1198, that added together give a palindrome (11111).

The spelling of 99131198 in words is "ninety-nine million, one hundred thirty-one thousand, one hundred ninety-eight".