1330527645 has 24 divisors (see below), whose sum is σ = 2309307000. Its totient is φ = 708673536.

The previous prime is 1330527587. The next prime is 1330527647. The reversal of 1330527645 is 5467250331.

1330527645 is a `hidden beast` number, since 1 + 3 + 3 + 0 + 5 + 2 + 7 + 645 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8259876 + 1322267769 = 2874^2 + 36363^2 .

It is not a de Polignac number, because 1330527645 - 2¹⁰ = 1330526621 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 (1330527647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15381 + ... + 53829.

It is an arithmetic number, because the mean of its divisors is an integer number (96221125).

Almost surely, 2^1330527645 is an apocalyptic number.

1330527645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1330527645 is the 23070-th heptagonal number.

It is an amenable number.

1330527645 is a deficient number, since it is larger than the sum of its proper divisors (978779355).

1330527645 is a wasteful number, since it uses less digits than its factorization.

1330527645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39229 (or 39226 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 1330527645 is about 36476.3984653090. The cubic root of 1330527645 is about 1099.8698592593.

Adding to 1330527645 its reverse (5467250331), we get a palindrome (6797777976).

The spelling of 1330527645 in words is "one billion, three hundred thirty million, five hundred twenty-seven thousand, six hundred forty-five".