1325089805 has 8 divisors (see below), whose sum is σ = 1712423832. Its totient is φ = 978527808.

The previous prime is 1325089789. The next prime is 1325089817. The reversal of 1325089805 is 5089805231.

It can be written as a sum of positive squares in 4 ways, for example, as 301473769 + 1023616036 = 17363^2 + 31994^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1325089805 - 2⁴ = 1325089789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10192934 + ... + 10193063.

It is an arithmetic number, because the mean of its divisors is an integer number (214052979).

Almost surely, 2^1325089805 is an apocalyptic number.

It is an amenable number.

1325089805 is a deficient number, since it is larger than the sum of its proper divisors (387334027).

1325089805 is a wasteful number, since it uses less digits than its factorization.

1325089805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386015.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1325089805 is about 36401.7829920459. The cubic root of 1325089805 is about 1098.3694312522.

The spelling of 1325089805 in words is "one billion, three hundred twenty-five million, eighty-nine thousand, eight hundred five".