99537128 has 16 divisors (see below), whose sum is σ = 187362180. Its totient is φ = 49573888.

The previous prime is 99537083. The next prime is 99537133. The reversal of 99537128 is 82173599.

It can be written as a sum of positive squares in 2 ways, for example, as 92891044 + 6646084 = 9638^2 + 2578^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22151 + ... + 26262.

Almost surely, 2^99537128 is an apocalyptic number.

It is an amenable number.

99537128 is a deficient number, since it is larger than the sum of its proper divisors (87825052).

99537128 is a wasteful number, since it uses less digits than its factorization.

99537128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48676 (or 48672 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 99537128 is about 9976.8295565275. The cubic root of 99537128 is about 463.4416217170.

The spelling of 99537128 in words is "ninety-nine million, five hundred thirty-seven thousand, one hundred twenty-eight".