1325705205 has 32 divisors (see below), whose sum is σ = 2317045248. Its totient is φ = 641908800.

The previous prime is 1325705201. The next prime is 1325705219. The reversal of 1325705205 is 5025075231.

It is not a de Polignac number, because 1325705205 - 2² = 1325705201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325705201) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 128862 + ... + 138768.

It is an arithmetic number, because the mean of its divisors is an integer number (72407664).

Almost surely, 2^1325705205 is an apocalyptic number.

1325705205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325705205 is a deficient number, since it is larger than the sum of its proper divisors (991340043).

1325705205 is a wasteful number, since it uses less digits than its factorization.

1325705205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10737.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 1325705205 is about 36410.2348935021. The cubic root of 1325705205 is about 1098.5394403421.

The spelling of 1325705205 in words is "one billion, three hundred twenty-five million, seven hundred five thousand, two hundred five".