201146305 has 4 divisors (see below), whose sum is σ = 241375572. Its totient is φ = 160917040.

The previous prime is 201146299. The next prime is 201146333. The reversal of 201146305 is 503641102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503641102 = 2 ⋅251820551.

It can be written as a sum of positive squares in 2 ways, for example, as 50936769 + 150209536 = 7137^2 + 12256^2 .

It is not a de Polignac number, because 201146305 - 2⁹ = 201145793 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 3 ways as a sum of consecutive naturals, for example, 20114626 + ... + 20114635.

It is an arithmetic number, because the mean of its divisors is an integer number (60343893).

Almost surely, 2^201146305 is an apocalyptic number.

It is an amenable number.

201146305 is a deficient number, since it is larger than the sum of its proper divisors (40229267).

201146305 is an equidigital number, since it uses as much as digits as its factorization.

201146305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40229266.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 201146305 is about 14182.6057196835. The cubic root of 201146305 is about 585.9186919071.

Adding to 201146305 its reverse (503641102), we get a palindrome (704787407).

The spelling of 201146305 in words is "two hundred one million, one hundred forty-six thousand, three hundred five".