200530155 has 16 divisors (see below), whose sum is σ = 366683904. Its totient is φ = 91670880.

The previous prime is 200530151. The next prime is 200530159. The reversal of 200530155 is 551035002.

It is an interprime number because it is at equal distance from previous prime (200530151) and next prime (200530159).

It is not a de Polignac number, because 200530155 - 2² = 200530151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (200530151) by changing a digit.

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, 954801 + ... + 955010.

It is an arithmetic number, because the mean of its divisors is an integer number (22917744).

Almost surely, 2^200530155 is an apocalyptic number.

200530155 is a deficient number, since it is larger than the sum of its proper divisors (166153749).

200530155 is a wasteful number, since it uses less digits than its factorization.

200530155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909826.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 200530155 is about 14160.8670285403. The cubic root of 200530155 is about 585.3198192790.

Adding to 200530155 its reverse (551035002), we get a palindrome (751565157).

The spelling of 200530155 in words is "two hundred million, five hundred thirty thousand, one hundred fifty-five".