200133631 has 4 divisors (see below), whose sum is σ = 210667000. Its totient is φ = 189600264.

The previous prime is 200133617. The next prime is 200133643. The reversal of 200133631 is 136331002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136331002 = 2 ⋅68165501.

It is a cyclic number.

It is not a de Polignac number, because 200133631 - 2⁵ = 200133599 is a prime.

It is a super-3 number, since 3×200133631³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 10533349 = 200133631 / (2 + 0 + 0 + 1 + 3 + 3 + 6 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200133599 and 200133608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200130631) 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, 5266656 + ... + 5266693.

It is an arithmetic number, because the mean of its divisors is an integer number (52666750).

Almost surely, 2^200133631 is an apocalyptic number.

200133631 is a deficient number, since it is larger than the sum of its proper divisors (10533369).

200133631 is a wasteful number, since it uses less digits than its factorization.

200133631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10533368.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 200133631 is about 14146.8594041222. The cubic root of 200133631 is about 584.9337651165.

Adding to 200133631 its reverse (136331002), we get a palindrome (336464633).

The spelling of 200133631 in words is "two hundred million, one hundred thirty-three thousand, six hundred thirty-one".