1205445325 has 18 divisors (see below), whose sum is σ = 1738795146. Its totient is φ = 826590240.

The previous prime is 1205445301. The next prime is 1205445337. The reversal of 1205445325 is 5235445021.

It can be written as a sum of positive squares in 3 ways, for example, as 176703849 + 1028741476 = 13293^2 + 32074^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1205445325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 490794 + ... + 493243.

Almost surely, 2^1205445325 is an apocalyptic number.

It is an amenable number.

1205445325 is a deficient number, since it is larger than the sum of its proper divisors (533349821).

1205445325 is an equidigital number, since it uses as much as digits as its factorization.

1205445325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984061 (or 984049 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1205445325 is about 34719.5236862489. The cubic root of 1205445325 is about 1064.2635110260.

It can be divided in two parts, 120 and 5445325, that added together give a palindrome (5445445).

The spelling of 1205445325 in words is "one billion, two hundred five million, four hundred forty-five thousand, three hundred twenty-five".