1325442405 has 24 divisors (see below), whose sum is σ = 2466947232. Its totient is φ = 605916192.

The previous prime is 1325442403. The next prime is 1325442407. The reversal of 1325442405 is 5042445231.

It is an interprime number because it is at equal distance from previous prime (1325442403) and next prime (1325442407).

It is not a de Polignac number, because 1325442405 - 2¹ = 1325442403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325442403) 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 in 23 ways as a sum of consecutive naturals, for example, 900927 + ... + 902396.

It is an arithmetic number, because the mean of its divisors is an integer number (102789468).

Almost surely, 2^1325442405 is an apocalyptic number.

1325442405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325442405 is a deficient number, since it is larger than the sum of its proper divisors (1141504827).

1325442405 is a wasteful number, since it uses less digits than its factorization.

1325442405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803345 (or 1803338 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1325442405 is about 36406.6258392617. The cubic root of 1325442405 is about 1098.4668462132.

Adding to 1325442405 its reverse (5042445231), we get a palindrome (6367887636).

The spelling of 1325442405 in words is "one billion, three hundred twenty-five million, four hundred forty-two thousand, four hundred five".