200543155 has 4 divisors (see below), whose sum is σ = 240651792. Its totient is φ = 160434520.

The previous prime is 200543153. The next prime is 200543171. The reversal of 200543155 is 551345002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 200543155 - 2¹ = 200543153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200543153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20054311 + ... + 20054320.

It is an arithmetic number, because the mean of its divisors is an integer number (60162948).

Almost surely, 2^200543155 is an apocalyptic number.

200543155 is a deficient number, since it is larger than the sum of its proper divisors (40108637).

200543155 is an equidigital number, since it uses as much as digits as its factorization.

200543155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40108636.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 200543155 is about 14161.3260325437. The cubic root of 200543155 is about 585.3324674070.

Adding to 200543155 its reverse (551345002), we get a palindrome (751888157).

The spelling of 200543155 in words is "two hundred million, five hundred forty-three thousand, one hundred fifty-five".