1325633489 has 2 divisors, whose sum is σ = 1325633490. Its totient is φ = 1325633488.

The previous prime is 1325633479. The next prime is 1325633503. The reversal of 1325633489 is 9843365231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891619600 + 434013889 = 29860^2 + 20833^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325633489 - 2⁸ = 1325633233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1325633479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662816744 + 662816745.

It is an arithmetic number, because the mean of its divisors is an integer number (662816745).

Almost surely, 2^1325633489 is an apocalyptic number.

It is an amenable number.

1325633489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325633489 is an equidigital number, since it uses as much as digits as its factorization.

1325633489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 44.

The square root of 1325633489 is about 36409.2500472064. The cubic root of 1325633489 is about 1098.5196309418.

The spelling of 1325633489 in words is "one billion, three hundred twenty-five million, six hundred thirty-three thousand, four hundred eighty-nine".