198101964 has 12 divisors (see below), whose sum is σ = 462237944. Its totient is φ = 66033984.

The previous prime is 198101963. The next prime is 198101977. The reversal of 198101964 is 469101891.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (198101963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8254237 + ... + 8254260.

Almost surely, 2^198101964 is an apocalyptic number.

It is an amenable number.

198101964 is an abundant number, since it is smaller than the sum of its proper divisors (264135980).

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

198101964 is a wasteful number, since it uses less digits than its factorization.

198101964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16508504 (or 16508502 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 198101964 is about 14074.8699461132. The cubic root of 198101964 is about 582.9477007849.

The spelling of 198101964 in words is "one hundred ninety-eight million, one hundred one thousand, nine hundred sixty-four".