200631 has 4 divisors (see below), whose sum is σ = 267512. Its totient is φ = 133752.

The previous prime is 200609. The next prime is 200639. The reversal of 200631 is 136002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 200631 - 2¹⁵ = 167863 is a prime.

It is a super-2 number, since 2×200631² = 80505596322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200639) 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, 33436 + ... + 33441.

It is an arithmetic number, because the mean of its divisors is an integer number (66878).

2²⁰⁰⁶³¹ is an apocalyptic number.

200631 is a deficient number, since it is larger than the sum of its proper divisors (66881).

200631 is an equidigital number, since it uses as much as digits as its factorization.

200631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66880.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 200631 is about 447.9185193760. The cubic root of 200631 is about 58.5417920377.

Adding to 200631 its reverse (136002), we get a palindrome (336633).

The spelling of 200631 in words is "two hundred thousand, six hundred thirty-one".