331401333 has 8 divisors (see below), whose sum is σ = 442443168. Its totient is φ = 220646864.

The previous prime is 331401263. The next prime is 331401337. The reversal of 331401333 is 333104133.

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 331401333 - 2⁹ = 331400821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331401337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69135 + ... + 73772.

It is an arithmetic number, because the mean of its divisors is an integer number (55305396).

Almost surely, 2^331401333 is an apocalyptic number.

It is an amenable number.

331401333 is a deficient number, since it is larger than the sum of its proper divisors (111041835).

331401333 is a wasteful number, since it uses less digits than its factorization.

331401333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143683.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 331401333 is about 18204.4316857187. The cubic root of 331401333 is about 692.0191037138.

Adding to 331401333 its reverse (333104133), we get a palindrome (664505466).

The spelling of 331401333 in words is "three hundred thirty-one million, four hundred one thousand, three hundred thirty-three".