1325482821 has 24 divisors (see below), whose sum is σ = 2063932416. Its totient is φ = 814862880.

The previous prime is 1325482819. The next prime is 1325482913. The reversal of 1325482821 is 1282845231.

It is a happy number.

1325482821 is a `hidden beast` number, since 1 + 32 + 548 + 2 + 82 + 1 = 666.

It is not a de Polignac number, because 1325482821 - 2¹ = 1325482819 is a prime.

It is a super-2 number, since 2×1325482821² = 3513809417532236082, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325482811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123916 + ... + 134186.

It is an arithmetic number, because the mean of its divisors is an integer number (85997184).

Almost surely, 2^1325482821 is an apocalyptic number.

It is an amenable number.

1325482821 is a deficient number, since it is larger than the sum of its proper divisors (738449595).

1325482821 is a wasteful number, since it uses less digits than its factorization.

1325482821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11393 (or 11390 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 1325482821 is about 36407.1808988282. The cubic root of 1325482821 is about 1098.4780110853.

The spelling of 1325482821 in words is "one billion, three hundred twenty-five million, four hundred eighty-two thousand, eight hundred twenty-one".