199100142 has 12 divisors (see below), whose sum is σ = 431383680. Its totient is φ = 66366708.

The previous prime is 199100137. The next prime is 199100147. The reversal of 199100142 is 241001991.

It is an interprime number because it is at equal distance from previous prime (199100137) and next prime (199100147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199100147) 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 5 ways as a sum of consecutive naturals, for example, 5530542 + ... + 5530577.

It is an arithmetic number, because the mean of its divisors is an integer number (35948640).

Almost surely, 2^199100142 is an apocalyptic number.

199100142 is an abundant number, since it is smaller than the sum of its proper divisors (232283538).

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

199100142 is a wasteful number, since it uses less digits than its factorization.

199100142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061127 (or 11061124 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 199100142 is about 14110.2849723172. The cubic root of 199100142 is about 583.9251620340.

The spelling of 199100142 in words is "one hundred ninety-nine million, one hundred thousand, one hundred forty-two".