201345 has 16 divisors (see below), whose sum is σ = 333312. Its totient is φ = 103680.

The previous prime is 201337. The next prime is 201359. The reversal of 201345 is 543102.

It is not a de Polignac number, because 201345 - 2³ = 201337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249 + ... + 681.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2²⁰¹³⁴⁵ is an apocalyptic number.

It is an amenable number.

201345 is a deficient number, since it is larger than the sum of its proper divisors (131967).

201345 is a wasteful number, since it uses less digits than its factorization.

201345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 201345 is about 448.7148314910. The cubic root of 201345 is about 58.6111554514.

Adding to 201345 its reverse (543102), we get a palindrome (744447).

The spelling of 201345 in words is "two hundred one thousand, three hundred forty-five".