331665343 has 8 divisors (see below), whose sum is σ = 337169840. Its totient is φ = 326177280.

The previous prime is 331665331. The next prime is 331665377. The reversal of 331665343 is 343566133.

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 331665343 - 2¹⁷ = 331534271 is a prime.

It is a super-2 number, since 2×331665343² = 220003799494615298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331665299 and 331665308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331665643) by changing a digit.

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, 40543 + ... + 48031.

It is an arithmetic number, because the mean of its divisors is an integer number (42146230).

Almost surely, 2^331665343 is an apocalyptic number.

331665343 is a deficient number, since it is larger than the sum of its proper divisors (5504497).

331665343 is an equidigital number, since it uses as much as digits as its factorization.

331665343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8217.

The product of its digits is 58320, while the sum is 34.

The square root of 331665343 is about 18211.6814984229. The cubic root of 331665343 is about 692.2028200028.

The spelling of 331665343 in words is "three hundred thirty-one million, six hundred sixty-five thousand, three hundred forty-three".