1208320705 has 16 divisors (see below), whose sum is σ = 1466337600. Its totient is φ = 955817280.

The previous prime is 1208320703. The next prime is 1208320733. The reversal of 1208320705 is 5070238021.

It is not a de Polignac number, because 1208320705 - 2¹ = 1208320703 is a prime.

It is a super-2 number, since 2×1208320705² = 2920077852263394050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1208320703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158266 + ... + 165724.

It is an arithmetic number, because the mean of its divisors is an integer number (91646100).

Almost surely, 2^1208320705 is an apocalyptic number.

It is an amenable number.

1208320705 is a deficient number, since it is larger than the sum of its proper divisors (258016895).

1208320705 is a wasteful number, since it uses less digits than its factorization.

1208320705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7824.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1208320705 is about 34760.9077125440. The cubic root of 1208320705 is about 1065.1090442102.

Adding to 1208320705 its reverse (5070238021), we get a palindrome (6278558726).

The spelling of 1208320705 in words is "one billion, two hundred eight million, three hundred twenty thousand, seven hundred five".