331003164 has 24 divisors (see below), whose sum is σ = 790303360. Its totient is φ = 107768304.

The previous prime is 331003163. The next prime is 331003171. The reversal of 331003164 is 461300133.

It is a self number, because there is not a number n which added to its sum of digits gives 331003164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331003163) 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, 320224 + ... + 321255.

Almost surely, 2^331003164 is an apocalyptic number.

It is an amenable number.

331003164 is an abundant number, since it is smaller than the sum of its proper divisors (459300196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331003164 is a wasteful number, since it uses less digits than its factorization.

331003164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641529 (or 641527 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 331003164 is about 18193.4923530366. The cubic root of 331003164 is about 691.7418457468.

Adding to 331003164 its reverse (461300133), we get a palindrome (792303297).

The spelling of 331003164 in words is "three hundred thirty-one million, three thousand, one hundred sixty-four".