1325183509 has 8 divisors (see below), whose sum is σ = 1461929112. Its totient is φ = 1193410560.

The previous prime is 1325183491. The next prime is 1325183513. The reversal of 1325183509 is 9053815231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9090225 + 1316093284 = 3015^2 + 36278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1325183509 - 2¹¹ = 1325181461 is a prime.

It is a super-3 number, since 3×1325183509³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325183549) 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 7 ways as a sum of consecutive naturals, for example, 1242604 + ... + 1243669.

It is an arithmetic number, because the mean of its divisors is an integer number (182741139).

Almost surely, 2^1325183509 is an apocalyptic number.

It is an amenable number.

1325183509 is a deficient number, since it is larger than the sum of its proper divisors (136745603).

1325183509 is a wasteful number, since it uses less digits than its factorization.

1325183509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486327.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1325183509 is about 36403.0700491044. The cubic root of 1325183509 is about 1098.3953211159.

The spelling of 1325183509 in words is "one billion, three hundred twenty-five million, one hundred eighty-three thousand, five hundred nine".