198528229 has 8 divisors (see below), whose sum is σ = 205623000. Its totient is φ = 191450112.

The previous prime is 198528163. The next prime is 198528241. The reversal of 198528229 is 922825891.

It can be written as a sum of positive squares in 4 ways, for example, as 21372129 + 177156100 = 4623^2 + 13310^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198528229 - 2²¹ = 196431077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198528269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23257 + ... + 30625.

It is an arithmetic number, because the mean of its divisors is an integer number (25702875).

Almost surely, 2^198528229 is an apocalyptic number.

It is an amenable number.

198528229 is a deficient number, since it is larger than the sum of its proper divisors (7094771).

198528229 is an equidigital number, since it uses as much as digits as its factorization.

198528229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8327.

The product of its digits is 207360, while the sum is 46.

The square root of 198528229 is about 14090.0045777139. The cubic root of 198528229 is about 583.3655196027.

The spelling of 198528229 in words is "one hundred ninety-eight million, five hundred twenty-eight thousand, two hundred twenty-nine".