200135172 has 12 divisors (see below), whose sum is σ = 466982096. Its totient is φ = 66711720.

The previous prime is 200135171. The next prime is 200135207. The reversal of 200135172 is 271531002.

200135172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (200135171) 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, 8338954 + ... + 8338977.

Almost surely, 2^200135172 is an apocalyptic number.

It is an amenable number.

200135172 is an abundant number, since it is smaller than the sum of its proper divisors (266846924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200135172 is a wasteful number, since it uses less digits than its factorization.

200135172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677938 (or 16677936 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 200135172 is about 14146.9138684025. The cubic root of 200135172 is about 584.9352664144.

Adding to 200135172 its reverse (271531002), we get a palindrome (471666174).

It can be divided in two parts, 2001 and 35172, that added together give a palindrome (37173).

The spelling of 200135172 in words is "two hundred million, one hundred thirty-five thousand, one hundred seventy-two".