198102852 has 18 divisors (see below), whose sum is σ = 500760078. Its totient is φ = 66034272.

The previous prime is 198102833. The next prime is 198102869. The reversal of 198102852 is 258201891.

It can be written as a sum of positive squares in only one way, i.e., 152621316 + 45481536 = 12354^2 + 6744^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5502857 = 198102852 / (1 + 9 + 8 + 1 + 0 + 2 + 8 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2751393 + ... + 2751464.

Almost surely, 2^198102852 is an apocalyptic number.

198102852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198102852 is an abundant number, since it is smaller than the sum of its proper divisors (302657226).

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

198102852 is a wasteful number, since it uses less digits than its factorization.

198102852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502867 (or 5502862 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 198102852 is about 14074.9014916624. The cubic root of 198102852 is about 582.9485718124.

The spelling of 198102852 in words is "one hundred ninety-eight million, one hundred two thousand, eight hundred fifty-two".