201634 has 8 divisors (see below), whose sum is σ = 304668. Its totient is φ = 100080.

The previous prime is 201629. The next prime is 201653. The reversal of 201634 is 436102.

201634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140625 + 61009 = 375^2 + 247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84 + ... + 640.

2²⁰¹⁶³⁴ is an apocalyptic number.

201634 is a deficient number, since it is larger than the sum of its proper divisors (103034).

201634 is a wasteful number, since it uses less digits than its factorization.

201634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 201634 is about 449.0367468259. The cubic root of 201634 is about 58.6391844995.

Adding to 201634 its reverse (436102), we get a palindrome (637736).

The spelling of 201634 in words is "two hundred one thousand, six hundred thirty-four".