1325440349 has 2 divisors, whose sum is σ = 1325440350. Its totient is φ = 1325440348.

The previous prime is 1325440267. The next prime is 1325440379. The reversal of 1325440349 is 9430445231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1109556100 + 215884249 = 33310^2 + 14693^2 .

It is an emirp because it is prime and its reverse (9430445231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1325440349 - 2⁸ = 1325440093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325440379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662720174 + 662720175.

It is an arithmetic number, because the mean of its divisors is an integer number (662720175).

Almost surely, 2^1325440349 is an apocalyptic number.

It is an amenable number.

1325440349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325440349 is an equidigital number, since it uses as much as digits as its factorization.

1325440349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 1325440349 is about 36406.5976026324. The cubic root of 1325440349 is about 1098.4662782396.

The spelling of 1325440349 in words is "one billion, three hundred twenty-five million, four hundred forty thousand, three hundred forty-nine".