331140441 has 4 divisors (see below), whose sum is σ = 441520592. Its totient is φ = 220760292.

The previous prime is 331140437. The next prime is 331140457. The reversal of 331140441 is 144041133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 331140441 - 2² = 331140437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331140401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55190071 + ... + 55190076.

It is an arithmetic number, because the mean of its divisors is an integer number (110380148).

Almost surely, 2^331140441 is an apocalyptic number.

It is an amenable number.

331140441 is a deficient number, since it is larger than the sum of its proper divisors (110380151).

331140441 is a wasteful number, since it uses less digits than its factorization.

331140441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110380150.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 331140441 is about 18197.2646570851. The cubic root of 331140441 is about 691.8374612686.

Adding to 331140441 its reverse (144041133), we get a palindrome (475181574).

The spelling of 331140441 in words is "three hundred thirty-one million, one hundred forty thousand, four hundred forty-one".