1325440045 has 16 divisors (see below), whose sum is σ = 1601906112. Its totient is φ = 1052789760.

The previous prime is 1325440043. The next prime is 1325440073. The reversal of 1325440045 is 5400445231.

It is not a de Polignac number, because 1325440045 - 2¹ = 1325440043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325439995 and 1325440022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325440043) 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, 658090 + ... + 660100.

It is an arithmetic number, because the mean of its divisors is an integer number (100119132).

Almost surely, 2^1325440045 is an apocalyptic number.

It is an amenable number.

1325440045 is a deficient number, since it is larger than the sum of its proper divisors (276466067).

1325440045 is a wasteful number, since it uses less digits than its factorization.

1325440045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1325440045 is about 36406.5934275647. The cubic root of 1325440045 is about 1098.4661942590.

Adding to 1325440045 its reverse (5400445231), we get a palindrome (6725885276).

The spelling of 1325440045 in words is "one billion, three hundred twenty-five million, four hundred forty thousand, forty-five".