201305345 has 16 divisors (see below), whose sum is σ = 252313920. Its totient is φ = 154027584.

The previous prime is 201305341. The next prime is 201305353. The reversal of 201305345 is 543503102.

It is a cyclic number.

It is not a de Polignac number, because 201305345 - 2² = 201305341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201305345.

It is not an unprimeable number, because it can be changed into a prime (201305341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694 + ... + 20136.

It is an arithmetic number, because the mean of its divisors is an integer number (15769620).

Almost surely, 2^201305345 is an apocalyptic number.

It is an amenable number.

201305345 is a deficient number, since it is larger than the sum of its proper divisors (51008575).

201305345 is a wasteful number, since it uses less digits than its factorization.

201305345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18544.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 201305345 is about 14188.2114799576. The cubic root of 201305345 is about 586.0730736645.

Adding to 201305345 its reverse (543503102), we get a palindrome (744808447).

The spelling of 201305345 in words is "two hundred one million, three hundred five thousand, three hundred forty-five".