200115642 has 16 divisors (see below), whose sum is σ = 402919200. Its totient is φ = 66257232.

The previous prime is 200115637. The next prime is 200115661. The reversal of 200115642 is 246511002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 111028 + ... + 112815.

It is an arithmetic number, because the mean of its divisors is an integer number (25182450).

Almost surely, 2^200115642 is an apocalyptic number.

200115642 is an abundant number, since it is smaller than the sum of its proper divisors (202803558).

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

200115642 is a wasteful number, since it uses less digits than its factorization.

200115642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223997.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 200115642 is about 14146.2235950094. The cubic root of 200115642 is about 584.9162390120.

Adding to 200115642 its reverse (246511002), we get a palindrome (446626644).

The spelling of 200115642 in words is "two hundred million, one hundred fifteen thousand, six hundred forty-two".