198528099 has 64 divisors (see below), whose sum is σ = 341787648. Its totient is φ = 99532800.

The previous prime is 198528079. The next prime is 198528137. The reversal of 198528099 is 990825891.

It is a Cunningham number, because it is equal to 14090²-1.

It is not a de Polignac number, because 198528099 - 2⁵ = 198528067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198528049) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1028547 + ... + 1028739.

It is an arithmetic number, because the mean of its divisors is an integer number (5340432).

Almost surely, 2^198528099 is an apocalyptic number.

198528099 is a deficient number, since it is larger than the sum of its proper divisors (143259549).

198528099 is a wasteful number, since it uses less digits than its factorization.

198528099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 466560, while the sum is 51.

The square root of 198528099 is about 14089.9999645138. Note that the first 4 decimals coincide. The cubic root of 198528099 is about 583.3653922698.

The spelling of 198528099 in words is "one hundred ninety-eight million, five hundred twenty-eight thousand, ninety-nine".