201045305 has 8 divisors (see below), whose sum is σ = 241614792. Its totient is φ = 160595968.

The previous prime is 201045293. The next prime is 201045311. The reversal of 201045305 is 503540102.

It can be written as a sum of positive squares in 4 ways, for example, as 49730704 + 151314601 = 7052^2 + 12301^2 .

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 201045305 - 2⁶ = 201045241 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26312 + ... + 33081.

It is an arithmetic number, because the mean of its divisors is an integer number (30201849).

Almost surely, 2^201045305 is an apocalyptic number.

It is an amenable number.

201045305 is a deficient number, since it is larger than the sum of its proper divisors (40569487).

201045305 is an equidigital number, since it uses as much as digits as its factorization.

201045305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60075.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 201045305 is about 14179.0445728900. The cubic root of 201045305 is about 585.8206079188.

Adding to 201045305 its reverse (503540102), we get a palindrome (704585407).

The spelling of 201045305 in words is "two hundred one million, forty-five thousand, three hundred five".