1208156168 has 12 divisors (see below), whose sum is σ = 2265477165. Its totient is φ = 604028928.

The previous prime is 1208156161. The next prime is 1208156171. The reversal of 1208156168 is 8616518021.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1080962884 + 127193284 = 32878^2 + 11278^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24578.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1208156161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 92168 + ... + 104456.

Almost surely, 2^1208156168 is an apocalyptic number.

It is an amenable number.

1208156168 is a deficient number, since it is larger than the sum of its proper divisors (1057320997).

1208156168 is an frugal number, since it uses more digits than its factorization.

1208156168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24584 (or 12291 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 1208156168 is about 34758.5409360059. The cubic root of 1208156168 is about 1065.0606967251.

The spelling of 1208156168 in words is "one billion, two hundred eight million, one hundred fifty-six thousand, one hundred sixty-eight".