1330533505 has 24 divisors (see below), whose sum is σ = 1907526888. Its totient is φ = 887701248.

The previous prime is 1330533497. The next prime is 1330533511. The reversal of 1330533505 is 5053350331.

It can be written as a sum of positive squares in 4 ways, for example, as 678446209 + 652087296 = 26047^2 + 25536^2 .

It is not a de Polignac number, because 1330533505 - 2³ = 1330533497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64324 + ... + 82453.

It is an arithmetic number, because the mean of its divisors is an integer number (79480287).

Almost surely, 2^1330533505 is an apocalyptic number.

It is an amenable number.

1330533505 is a deficient number, since it is larger than the sum of its proper divisors (576993383).

1330533505 is a wasteful number, since it uses less digits than its factorization.

1330533505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146833 (or 146826 counting only the distinct ones).

The product of its (nonzero) digits is 10125, while the sum is 28.

The square root of 1330533505 is about 36476.4787911333. The cubic root of 1330533505 is about 1099.8714739641.

Adding to 1330533505 its reverse (5053350331), we get a palindrome (6383883836).

The spelling of 1330533505 in words is "one billion, three hundred thirty million, five hundred thirty-three thousand, five hundred five".