1325061636 has 24 divisors (see below), whose sum is σ = 3094815360. Its totient is φ = 441257952.

The previous prime is 1325061629. The next prime is 1325061701. The reversal of 1325061636 is 6361605231.

1325061636 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1325061597 and 1325061606.

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, 40671 + ... + 65606.

It is an arithmetic number, because the mean of its divisors is an integer number (128950640).

Almost surely, 2^1325061636 is an apocalyptic number.

It is an amenable number.

1325061636 is an abundant number, since it is smaller than the sum of its proper divisors (1769753724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325061636 is a wasteful number, since it uses less digits than its factorization.

1325061636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107323 (or 107321 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1325061636 is about 36401.3960721289. The cubic root of 1325061636 is about 1098.3616480847.

Adding to 1325061636 its reverse (6361605231), we get a palindrome (7686666867).

The spelling of 1325061636 in words is "one billion, three hundred twenty-five million, sixty-one thousand, six hundred thirty-six".