1331528163 has 16 divisors (see below), whose sum is σ = 2029651200. Its totient is φ = 760627296.

The previous prime is 1331528161. The next prime is 1331528251. The reversal of 1331528163 is 3618251331.

It is not a de Polignac number, because 1331528163 - 2¹ = 1331528161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331528161) 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 15 ways as a sum of consecutive naturals, for example, 71388 + ... + 88086.

It is an arithmetic number, because the mean of its divisors is an integer number (126853200).

Almost surely, 2^1331528163 is an apocalyptic number.

1331528163 is a deficient number, since it is larger than the sum of its proper divisors (698123037).

1331528163 is a wasteful number, since it uses less digits than its factorization.

1331528163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20506.

The product of its digits is 12960, while the sum is 33.

The square root of 1331528163 is about 36490.1104821567. The cubic root of 1331528163 is about 1100.1454802077.

Adding to 1331528163 its reverse (3618251331), we get a palindrome (4949779494).

The spelling of 1331528163 in words is "one billion, three hundred thirty-one million, five hundred twenty-eight thousand, one hundred sixty-three".