200170745 has 16 divisors (see below), whose sum is σ = 244306560. Its totient is φ = 157417344.

The previous prime is 200170721. The next prime is 200170781. The reversal of 200170745 is 547071002.

It is a cyclic number.

It is not a de Polignac number, because 200170745 - 2²⁰ = 199122169 is a prime.

It is an unprimeable number.

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, 137612 + ... + 139058.

It is an arithmetic number, because the mean of its divisors is an integer number (15269160).

Almost surely, 2^200170745 is an apocalyptic number.

It is an amenable number.

200170745 is a deficient number, since it is larger than the sum of its proper divisors (44135815).

200170745 is a wasteful number, since it uses less digits than its factorization.

200170745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 200170745 is about 14148.1710832178. The cubic root of 200170745 is about 584.9699207755.

The spelling of 200170745 in words is "two hundred million, one hundred seventy thousand, seven hundred forty-five".