198990152 has 16 divisors (see below), whose sum is σ = 374457660. Its totient is φ = 99134784.

The previous prime is 198990149. The next prime is 198990157. The reversal of 198990152 is 251099891.

It is a happy number.

198990152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 176199076 + 22791076 = 13274^2 + 4774^2 .

It is not an unprimeable number, because it can be changed into a prime (198990157) 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, 42683 + ... + 47114.

Almost surely, 2^198990152 is an apocalyptic number.

It is an amenable number.

198990152 is a deficient number, since it is larger than the sum of its proper divisors (175467508).

198990152 is a wasteful number, since it uses less digits than its factorization.

198990152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90080 (or 90076 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 198990152 is about 14106.3869222420. The cubic root of 198990152 is about 583.8176152178.

The spelling of 198990152 in words is "one hundred ninety-eight million, nine hundred ninety thousand, one hundred fifty-two".