203107172 has 12 divisors (see below), whose sum is σ = 355817196. Its totient is φ = 101445120.

The previous prime is 203107147. The next prime is 203107241. The reversal of 203107172 is 271701302.

It can be written as a sum of positive squares in 2 ways, for example, as 97140736 + 105966436 = 9856^2 + 10294^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22829 + ... + 30452.

It is an arithmetic number, because the mean of its divisors is an integer number (29651433).

Almost surely, 2^203107172 is an apocalyptic number.

It is an amenable number.

203107172 is a deficient number, since it is larger than the sum of its proper divisors (152710024).

203107172 is a wasteful number, since it uses less digits than its factorization.

203107172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54238 (or 54236 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 203107172 is about 14251.5673524002. The cubic root of 203107172 is about 587.8164736445.

Adding to 203107172 its reverse (271701302), we get a palindrome (474808474).

The spelling of 203107172 in words is "two hundred three million, one hundred seven thousand, one hundred seventy-two".