1325543841 has 6 divisors (see below), whose sum is σ = 1914674450. Its totient is φ = 883695888.

The previous prime is 1325543827. The next prime is 1325543851. The reversal of 1325543841 is 1483455231.

1325543841 is a `hidden beast` number, since 1 + 32 + 5 + 543 + 84 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 707772816 + 617771025 = 26604^2 + 24855^2 .

It is not a de Polignac number, because 1325543841 - 2⁵ = 1325543809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325543796 and 1325543805.

It is not an unprimeable number, because it can be changed into a prime (1325543851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73641316 + ... + 73641333.

Almost surely, 2^1325543841 is an apocalyptic number.

It is an amenable number.

1325543841 is a deficient number, since it is larger than the sum of its proper divisors (589130609).

1325543841 is a wasteful number, since it uses less digits than its factorization.

1325543841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147282655 (or 147282652 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 1325543841 is about 36408.0189106741. The cubic root of 1325543841 is about 1098.4948673580.

The spelling of 1325543841 in words is "one billion, three hundred twenty-five million, five hundred forty-three thousand, eight hundred forty-one".