201343005 has 48 divisors (see below), whose sum is σ = 363570480. Its totient is φ = 102988800.

The previous prime is 201343001. The next prime is 201343013. The reversal of 201343005 is 500343102.

It can be written as a sum of positive squares in 8 ways, for example, as 27815076 + 173527929 = 5274^2 + 13173^2 .

It is not a de Polignac number, because 201343005 - 2² = 201343001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201343001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111651 + ... + 113439.

It is an arithmetic number, because the mean of its divisors is an integer number (7574385).

Almost surely, 2^201343005 is an apocalyptic number.

It is an amenable number.

201343005 is a deficient number, since it is larger than the sum of its proper divisors (162227475).

201343005 is a wasteful number, since it uses less digits than its factorization.

201343005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 201343005 is about 14189.5385760073. The cubic root of 201343005 is about 586.1096187046.

Adding to 201343005 its reverse (500343102), we get a palindrome (701686107).

It can be divided in two parts, 201 and 343005, that added together give a triangular number (343206 = T₈₂₈).

The spelling of 201343005 in words is "two hundred one million, three hundred forty-three thousand, five".