200543161 has 8 divisors (see below), whose sum is σ = 246822464. Its totient is φ = 158671440.

The previous prime is 200543153. The next prime is 200543171. The reversal of 200543161 is 161345002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200543161 - 2³ = 200543153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200543171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101795 + ... + 1101976.

It is an arithmetic number, because the mean of its divisors is an integer number (30852808).

Almost surely, 2^200543161 is an apocalyptic number.

It is an amenable number.

200543161 is a deficient number, since it is larger than the sum of its proper divisors (46279303).

200543161 is a wasteful number, since it uses less digits than its factorization.

200543161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203791.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 200543161 is about 14161.3262443883. The cubic root of 200543161 is about 585.3324732445.

Adding to 200543161 its reverse (161345002), we get a palindrome (361888163).

It can be divided in two parts, 200543 and 161, that added together give a square (200704 = 448²).

The spelling of 200543161 in words is "two hundred million, five hundred forty-three thousand, one hundred sixty-one".