99147128 has 16 divisors (see below), whose sum is σ = 196836480. Its totient is φ = 46657408.

The previous prime is 99147127. The next prime is 99147131. The reversal of 99147128 is 82174199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99147127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364376 + ... + 364647.

It is an arithmetic number, because the mean of its divisors is an integer number (12302280).

Almost surely, 2^99147128 is an apocalyptic number.

It is an amenable number.

99147128 is a deficient number, since it is larger than the sum of its proper divisors (97689352).

99147128 is a wasteful number, since it uses less digits than its factorization.

99147128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729046 (or 729042 counting only the distinct ones).

The product of its digits is 36288, while the sum is 41.

The square root of 99147128 is about 9957.2650863578. The cubic root of 99147128 is about 462.8355537139.

The spelling of 99147128 in words is "ninety-nine million, one hundred forty-seven thousand, one hundred twenty-eight".