200142546 has 32 divisors (see below), whose sum is σ = 411972288. Its totient is φ = 64774080.

The previous prime is 200142517. The next prime is 200142557. The reversal of 200142546 is 645241002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195516 + ... + 196536.

It is an arithmetic number, because the mean of its divisors is an integer number (12874134).

Almost surely, 2^200142546 is an apocalyptic number.

200142546 is an abundant number, since it is smaller than the sum of its proper divisors (211829742).

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

200142546 is a wasteful number, since it uses less digits than its factorization.

200142546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 200142546 is about 14147.1744882150. The cubic root of 200142546 is about 584.9424503253.

Adding to 200142546 its reverse (645241002), we get a palindrome (845383548).

The spelling of 200142546 in words is "two hundred million, one hundred forty-two thousand, five hundred forty-six".