1325089817 has 2 divisors, whose sum is σ = 1325089818. Its totient is φ = 1325089816.

The previous prime is 1325089789. The next prime is 1325089841. The reversal of 1325089817 is 7189805231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812022016 + 513067801 = 28496^2 + 22651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325089817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1325089877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662544908 + 662544909.

It is an arithmetic number, because the mean of its divisors is an integer number (662544909).

Almost surely, 2^1325089817 is an apocalyptic number.

It is an amenable number.

1325089817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325089817 is an equidigital number, since it uses as much as digits as its factorization.

1325089817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 1325089817 is about 36401.7831568730. The cubic root of 1325089817 is about 1098.3694345678.

The spelling of 1325089817 in words is "one billion, three hundred twenty-five million, eighty-nine thousand, eight hundred seventeen".