1325243433 has 4 divisors (see below), whose sum is σ = 1766991248. Its totient is φ = 883495620.

The previous prime is 1325243431. The next prime is 1325243441. The reversal of 1325243433 is 3343425231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1325243433 - 2¹ = 1325243431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325243433.

It is not an unprimeable number, because it can be changed into a prime (1325243431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220873903 + ... + 220873908.

It is an arithmetic number, because the mean of its divisors is an integer number (441747812).

Almost surely, 2^1325243433 is an apocalyptic number.

It is an amenable number.

1325243433 is a deficient number, since it is larger than the sum of its proper divisors (441747815).

1325243433 is an equidigital number, since it uses as much as digits as its factorization.

1325243433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441747814.

The product of its digits is 25920, while the sum is 30.

The square root of 1325243433 is about 36403.8931022494. The cubic root of 1325243433 is about 1098.4118771246.

Adding to 1325243433 its reverse (3343425231), we get a palindrome (4668668664).

The spelling of 1325243433 in words is "one billion, three hundred twenty-five million, two hundred forty-three thousand, four hundred thirty-three".