201306 has 16 divisors (see below), whose sum is σ = 460224. Its totient is φ = 57504.

The previous prime is 201287. The next prime is 201307. The reversal of 201306 is 603102.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201291 and 201300.

It is not an unprimeable number, because it can be changed into a prime (201307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2355 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (28764).

2²⁰¹³⁰⁶ is an apocalyptic number.

201306 is an abundant number, since it is smaller than the sum of its proper divisors (258918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201306 is a wasteful number, since it uses less digits than its factorization.

201306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805.

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

The square root of 201306 is about 448.6713719416. The cubic root of 201306 is about 58.6073709312.

Adding to 201306 its reverse (603102), we get a palindrome (804408).

It can be divided in two parts, 20 and 1306, that added together give a triangular number (1326 = T₅₁).

The spelling of 201306 in words is "two hundred one thousand, three hundred six".