99136128 has 128 divisors (see below), whose sum is σ = 324213120. Its totient is φ = 26136576.

The previous prime is 99136099. The next prime is 99136151. The reversal of 99136128 is 82163199.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33526 + ... + 36362.

It is an arithmetic number, because the mean of its divisors is an integer number (2532915).

Almost surely, 2^99136128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99136128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162106560).

99136128 is an abundant number, since it is smaller than the sum of its proper divisors (225076992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99136128 is a wasteful number, since it uses less digits than its factorization.

99136128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874 (or 2862 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 99136128 is about 9956.7127105285. The cubic root of 99136128 is about 462.8184364611.

The spelling of 99136128 in words is "ninety-nine million, one hundred thirty-six thousand, one hundred twenty-eight".