1325605403 has 2 divisors, whose sum is σ = 1325605404. Its totient is φ = 1325605402.

The previous prime is 1325605301. The next prime is 1325605409. The reversal of 1325605403 is 3045065231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1325605403 - 2¹² = 1325601307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1325605409) 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, 662802701 + 662802702.

It is an arithmetic number, because the mean of its divisors is an integer number (662802702).

Almost surely, 2^1325605403 is an apocalyptic number.

1325605403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325605403 is an equidigital number, since it uses as much as digits as its factorization.

1325605403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1325605403 is about 36408.8643464747. The cubic root of 1325605403 is about 1098.5118728296.

The spelling of 1325605403 in words is "one billion, three hundred twenty-five million, six hundred five thousand, four hundred three".