200142134 has 4 divisors (see below), whose sum is σ = 300213204. Its totient is φ = 100071066.

The previous prime is 200142119. The next prime is 200142149. The reversal of 200142134 is 431241002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431241002 = 2 ⋅215620501.

It is an interprime number because it is at equal distance from previous prime (200142119) and next prime (200142149).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 50035532 + ... + 50035535.

It is an arithmetic number, because the mean of its divisors is an integer number (75053301).

Almost surely, 2^200142134 is an apocalyptic number.

200142134 is a deficient number, since it is larger than the sum of its proper divisors (100071070).

200142134 is a wasteful number, since it uses less digits than its factorization.

200142134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100071069.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 200142134 is about 14147.1599269959. The cubic root of 200142134 is about 584.9420489506.

Adding to 200142134 its reverse (431241002), we get a palindrome (631383136).

The spelling of 200142134 in words is "two hundred million, one hundred forty-two thousand, one hundred thirty-four".