99171125 has 16 divisors (see below), whose sum is σ = 124760064. Its totient is φ = 78699600.

The previous prime is 99171119. The next prime is 99171133. The reversal of 99171125 is 52117199.

It is a de Polignac number, because none of the positive numbers 2^k-99171125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12752 + ... + 18998.

It is an arithmetic number, because the mean of its divisors is an integer number (7797504).

Almost surely, 2^99171125 is an apocalyptic number.

It is an amenable number.

99171125 is a deficient number, since it is larger than the sum of its proper divisors (25588939).

99171125 is a wasteful number, since it uses less digits than its factorization.

99171125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389 (or 6379 counting only the distinct ones).

The product of its digits is 5670, while the sum is 35.

The square root of 99171125 is about 9958.4700130090. The cubic root of 99171125 is about 462.8728913859.

The spelling of 99171125 in words is "ninety-nine million, one hundred seventy-one thousand, one hundred twenty-five".