1325269947 has 4 divisors (see below), whose sum is σ = 1767026600. Its totient is φ = 883513296.

The previous prime is 1325269943. The next prime is 1325269949. The reversal of 1325269947 is 7499625231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1325269947 - 2² = 1325269943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325269896 and 1325269905.

It is not an unprimeable number, because it can be changed into a prime (1325269943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220878322 + ... + 220878327.

It is an arithmetic number, because the mean of its divisors is an integer number (441756650).

Almost surely, 2^1325269947 is an apocalyptic number.

1325269947 is a deficient number, since it is larger than the sum of its proper divisors (441756653).

1325269947 is an equidigital number, since it uses as much as digits as its factorization.

1325269947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441756652.

The product of its digits is 816480, while the sum is 48.

The square root of 1325269947 is about 36404.2572647761. The cubic root of 1325269947 is about 1098.4192023444.

The spelling of 1325269947 in words is "one billion, three hundred twenty-five million, two hundred sixty-nine thousand, nine hundred forty-seven".