201234305 has 8 divisors (see below), whose sum is σ = 248007912. Its totient is φ = 156636288.

The previous prime is 201234283. The next prime is 201234329. The reversal of 201234305 is 503432102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29073664 + 172160641 = 5392^2 + 13121^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 201234305 - 2¹² = 201230209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 543692 + ... + 544061.

It is an arithmetic number, because the mean of its divisors is an integer number (31000989).

Almost surely, 2^201234305 is an apocalyptic number.

It is an amenable number.

201234305 is a deficient number, since it is larger than the sum of its proper divisors (46773607).

201234305 is a wasteful number, since it uses less digits than its factorization.

201234305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087795.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 201234305 is about 14185.7077722615. The cubic root of 201234305 is about 586.0041244609.

Adding to 201234305 its reverse (503432102), we get a palindrome (704666407).

The spelling of 201234305 in words is "two hundred one million, two hundred thirty-four thousand, three hundred five".