1305196105 has 8 divisors (see below), whose sum is σ = 1568176200. Its totient is φ = 1042862976.

The previous prime is 1305196093. The next prime is 1305196141. The reversal of 1305196105 is 5016915031.

It can be written as a sum of positive squares in 4 ways, for example, as 38975049 + 1266221056 = 6243^2 + 35584^2 .

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 1305196105 - 2¹⁷ = 1305065033 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 157290 + ... + 165379.

It is an arithmetic number, because the mean of its divisors is an integer number (196022025).

Almost surely, 2^1305196105 is an apocalyptic number.

It is an amenable number.

1305196105 is a deficient number, since it is larger than the sum of its proper divisors (262980095).

1305196105 is an equidigital number, since it uses as much as digits as its factorization.

1305196105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323483.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 1305196105 is about 36127.4979067192. The cubic root of 1305196105 is about 1092.8450505203.

The spelling of 1305196105 in words is "one billion, three hundred five million, one hundred ninety-six thousand, one hundred five".