201343309 has 8 divisors (see below), whose sum is σ = 204583680. Its totient is φ = 198122496.

The previous prime is 201343301. The next prime is 201343319. The reversal of 201343309 is 903343102.

It is a happy number.

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 201343309 - 2³ = 201343301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201343301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16612 + ... + 26050.

It is an arithmetic number, because the mean of its divisors is an integer number (25572960).

Almost surely, 2^201343309 is an apocalyptic number.

It is an amenable number.

201343309 is a deficient number, since it is larger than the sum of its proper divisors (3240371).

201343309 is an equidigital number, since it uses as much as digits as its factorization.

201343309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9779.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 201343309 is about 14189.5492881205. The cubic root of 201343309 is about 586.1099136859.

The spelling of 201343309 in words is "two hundred one million, three hundred forty-three thousand, three hundred nine".