1325347049 has 4 divisors (see below), whose sum is σ = 1427296836. Its totient is φ = 1223397264.

The previous prime is 1325347027. The next prime is 1325347063. The reversal of 1325347049 is 9407435231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 820536025 + 504811024 = 28645^2 + 22468^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325347049 - 2²⁴ = 1308569833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1325347349) 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, 50974874 + ... + 50974899.

It is an arithmetic number, because the mean of its divisors is an integer number (356824209).

Almost surely, 2^1325347049 is an apocalyptic number.

It is an amenable number.

1325347049 is a deficient number, since it is larger than the sum of its proper divisors (101949787).

1325347049 is a wasteful number, since it uses less digits than its factorization.

1325347049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101949786.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 1325347049 is about 36405.3162189260. The cubic root of 1325347049 is about 1098.4405033317.

The spelling of 1325347049 in words is "one billion, three hundred twenty-five million, three hundred forty-seven thousand, forty-nine".