1325512206 has 72 divisors (see below), whose sum is σ = 2989997712. Its totient is φ = 424300800.

The previous prime is 1325512169. The next prime is 1325512211. The reversal of 1325512206 is 6022155231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325512206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2148010 + ... + 2148626.

It is an arithmetic number, because the mean of its divisors is an integer number (41527746).

Almost surely, 2^1325512206 is an apocalyptic number.

1325512206 is an abundant number, since it is smaller than the sum of its proper divisors (1664485506).

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

1325512206 is a wasteful number, since it uses less digits than its factorization.

1325512206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1325512206 is about 36407.5844570881. The cubic root of 1325512206 is about 1098.4861285143.

Adding to 1325512206 its reverse (6022155231), we get a palindrome (7347667437).

The spelling of 1325512206 in words is "one billion, three hundred twenty-five million, five hundred twelve thousand, two hundred six".