198101142 has 12 divisors (see below), whose sum is σ = 429219180. Its totient is φ = 66033708.

The previous prime is 198101131. The next prime is 198101159. The reversal of 198101142 is 241101891.

It is a congruent number.

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, 5502792 + ... + 5502827.

It is an arithmetic number, because the mean of its divisors is an integer number (35768265).

Almost surely, 2^198101142 is an apocalyptic number.

198101142 is an abundant number, since it is smaller than the sum of its proper divisors (231118038).

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

198101142 is a wasteful number, since it uses less digits than its factorization.

198101142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11005627 (or 11005624 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 198101142 is about 14074.8407451026. The cubic root of 198101142 is about 582.9468944936.

The spelling of 198101142 in words is "one hundred ninety-eight million, one hundred one thousand, one hundred forty-two".