200105073 has 30 divisors (see below), whose sum is σ = 347732946. Its totient is φ = 114343488.

The previous prime is 200105069. The next prime is 200105107. The reversal of 200105073 is 370501002.

It can be written as a sum of positive squares in only one way, i.e., 157176369 + 42928704 = 12537^2 + 6552^2 .

It is not a de Polignac number, because 200105073 - 2² = 200105069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200106073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 21240 + ... + 29177.

Almost surely, 2^200105073 is an apocalyptic number.

It is an amenable number.

200105073 is a deficient number, since it is larger than the sum of its proper divisors (147627873).

200105073 is an equidigital number, since it uses as much as digits as its factorization.

200105073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50443 (or 50427 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 200105073 is about 14145.8500274816. The cubic root of 200105073 is about 584.9059414852.

Adding to 200105073 its reverse (370501002), we get a palindrome (570606075).

The spelling of 200105073 in words is "two hundred million, one hundred five thousand, seventy-three".