99131197 has 8 divisors (see below), whose sum is σ = 109215072. Its totient is φ = 89226000.

The previous prime is 99131183. The next prime is 99131203. The reversal of 99131197 is 79113199.

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

It is a cyclic number.

It is not a de Polignac number, because 99131197 - 2¹⁹ = 98606909 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 (99131107) 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 7 ways as a sum of consecutive naturals, for example, 43503 + ... + 45724.

It is an arithmetic number, because the mean of its divisors is an integer number (13651884).

Almost surely, 2^99131197 is an apocalyptic number.

It is an amenable number.

99131197 is a deficient number, since it is larger than the sum of its proper divisors (10083875).

99131197 is a wasteful number, since it uses less digits than its factorization.

99131197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89339.

The product of its digits is 15309, while the sum is 40.

The square root of 99131197 is about 9956.4650855612. The cubic root of 99131197 is about 462.8107628524.

The spelling of 99131197 in words is "ninety-nine million, one hundred thirty-one thousand, one hundred ninety-seven".