1331441005 has 8 divisors (see below), whose sum is σ = 1597980024. Its totient is φ = 1064985600.

The previous prime is 1331440973. The next prime is 1331441021. The reversal of 1331441005 is 5001441331.

It can be written as a sum of positive squares in 4 ways, for example, as 1671849 + 1329769156 = 1293^2 + 36466^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1331441005 - 2⁵ = 1331440973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22225 + ... + 56185.

It is an arithmetic number, because the mean of its divisors is an integer number (199747503).

Almost surely, 2^1331441005 is an apocalyptic number.

It is an amenable number.

1331441005 is a deficient number, since it is larger than the sum of its proper divisors (266539019).

1331441005 is an equidigital number, since it uses as much as digits as its factorization.

1331441005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41807.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1331441005 is about 36488.9161938252. The cubic root of 1331441005 is about 1100.1214755654.

Adding to 1331441005 its reverse (5001441331), we get a palindrome (6332882336).

The spelling of 1331441005 in words is "one billion, three hundred thirty-one million, four hundred forty-one thousand, five".