1325213361 has 6 divisors (see below), whose sum is σ = 1914197090. Its totient is φ = 883475568.

The previous prime is 1325213353. The next prime is 1325213381. The reversal of 1325213361 is 1633125231.

1325213361 is a `hidden beast` number, since 1 + 325 + 2 + 1 + 336 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1271279025 + 53934336 = 35655^2 + 7344^2 .

It is not a de Polignac number, because 1325213361 - 2³ = 1325213353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325213381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73622956 + ... + 73622973.

Almost surely, 2^1325213361 is an apocalyptic number.

It is an amenable number.

1325213361 is a deficient number, since it is larger than the sum of its proper divisors (588983729).

1325213361 is a wasteful number, since it uses less digits than its factorization.

1325213361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147245935 (or 147245932 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 1325213361 is about 36403.4800671584. The cubic root of 1325213361 is about 1098.4035687915.

Adding to 1325213361 its reverse (1633125231), we get a palindrome (2958338592).

The spelling of 1325213361 in words is "one billion, three hundred twenty-five million, two hundred thirteen thousand, three hundred sixty-one".