1325665423 has 16 divisors (see below), whose sum is σ = 1440270720. Its totient is φ = 1215232000.

The previous prime is 1325665403. The next prime is 1325665427. The reversal of 1325665423 is 3245665231.

It is a cyclic number.

It is not a de Polignac number, because 1325665423 - 2⁹ = 1325664911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325665427) 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 15 ways as a sum of consecutive naturals, for example, 562698 + ... + 565048.

It is an arithmetic number, because the mean of its divisors is an integer number (90016920).

Almost surely, 2^1325665423 is an apocalyptic number.

1325665423 is a deficient number, since it is larger than the sum of its proper divisors (114605297).

1325665423 is a wasteful number, since it uses less digits than its factorization.

1325665423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218.

The product of its digits is 129600, while the sum is 37.

The square root of 1325665423 is about 36409.6885869682. The cubic root of 1325665423 is about 1098.5284518425.

The spelling of 1325665423 in words is "one billion, three hundred twenty-five million, six hundred sixty-five thousand, four hundred twenty-three".