1325407843 has 2 divisors, whose sum is σ = 1325407844. Its totient is φ = 1325407842.

The previous prime is 1325407829. The next prime is 1325407901. The reversal of 1325407843 is 3487045231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1325407843 - 2¹³ = 1325399651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1325407043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662703921 + 662703922.

It is an arithmetic number, because the mean of its divisors is an integer number (662703922).

Almost surely, 2^1325407843 is an apocalyptic number.

1325407843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325407843 is an equidigital number, since it uses as much as digits as its factorization.

1325407843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 1325407843 is about 36406.1511698229. The cubic root of 1325407843 is about 1098.4572983216.

The spelling of 1325407843 in words is "one billion, three hundred twenty-five million, four hundred seven thousand, eight hundred forty-three".