200745 has 16 divisors (see below), whose sum is σ = 357120. Its totient is φ = 106992.

The previous prime is 200731. The next prime is 200771. The reversal of 200745 is 547002.

It is a happy number.

It is not a de Polignac number, because 200745 - 2⁵ = 200713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609 + ... + 878.

It is an arithmetic number, because the mean of its divisors is an integer number (22320).

2²⁰⁰⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

200745 is a deficient number, since it is larger than the sum of its proper divisors (156375).

200745 is a wasteful number, since it uses less digits than its factorization.

200745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 200745 is about 448.0457565919. The cubic root of 200745 is about 58.5528778963.

Adding to 200745 its reverse (547002), we get a palindrome (747747).

The spelling of 200745 in words is "two hundred thousand, seven hundred forty-five".