1205325305 has 4 divisors (see below), whose sum is σ = 1446390372. Its totient is φ = 964260240.

The previous prime is 1205325271. The next prime is 1205325307. The reversal of 1205325305 is 5035235021.

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 192876544 + 1012448761 = 13888^2 + 31819^2 .

It is not a de Polignac number, because 1205325305 - 2⁸ = 1205325049 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 (1205325307) 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, 120532526 + ... + 120532535.

It is an arithmetic number, because the mean of its divisors is an integer number (361597593).

Almost surely, 2^1205325305 is an apocalyptic number.

It is an amenable number.

1205325305 is a deficient number, since it is larger than the sum of its proper divisors (241065067).

1205325305 is an equidigital number, since it uses as much as digits as its factorization.

1205325305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241065066.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 1205325305 is about 34717.7952208950. The cubic root of 1205325305 is about 1064.2281887697.

The spelling of 1205325305 in words is "one billion, two hundred five million, three hundred twenty-five thousand, three hundred five".