1326612361 has 2 divisors, whose sum is σ = 1326612362. Its totient is φ = 1326612360.

The previous prime is 1326612269. The next prime is 1326612367. The reversal of 1326612361 is 1632166231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698809225 + 627803136 = 26435^2 + 25056^2 .

It is an emirp because it is prime and its reverse (1632166231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1326612361 - 2²⁵ = 1293057929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1326612367) 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 as a sum of consecutive naturals, namely, 663306180 + 663306181.

It is an arithmetic number, because the mean of its divisors is an integer number (663306181).

Almost surely, 2^1326612361 is an apocalyptic number.

It is an amenable number.

1326612361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326612361 is an equidigital number, since it uses as much as digits as its factorization.

1326612361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 1326612361 is about 36422.6901944379. The cubic root of 1326612361 is about 1098.7899534076.

Adding to 1326612361 its reverse (1632166231), we get a palindrome (2958778592).

The spelling of 1326612361 in words is "one billion, three hundred twenty-six million, six hundred twelve thousand, three hundred sixty-one".