200749 has 4 divisors (see below), whose sum is σ = 201664. Its totient is φ = 199836.

The previous prime is 200731. The next prime is 200771. The reversal of 200749 is 947002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 200749 - 2⁹ = 200237 is a prime.

It is a super-2 number, since 2×200749² = 80600322002, which contains 22 as substring.

It is a Duffinian number.

200749 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94 + ... + 640.

It is an arithmetic number, because the mean of its divisors is an integer number (50416).

2²⁰⁰⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

200749 is a deficient number, since it is larger than the sum of its proper divisors (915).

200749 is an equidigital number, since it uses as much as digits as its factorization.

200749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 200749 is about 448.0502203995. The cubic root of 200749 is about 58.5532667975.

It can be divided in two parts, 200 and 749, that added together give a palindrome (949).

The spelling of 200749 in words is "two hundred thousand, seven hundred forty-nine".