1208155 has 8 divisors (see below), whose sum is σ = 1561392. Its totient is φ = 892128.

The previous prime is 1208149. The next prime is 1208159. The reversal of 1208155 is 5518021.

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 1208155 - 2⁷ = 1208027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1208159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9229 + ... + 9358.

It is an arithmetic number, because the mean of its divisors is an integer number (195174).

2^1208155 is an apocalyptic number.

1208155 is a deficient number, since it is larger than the sum of its proper divisors (353237).

1208155 is a wasteful number, since it uses less digits than its factorization.

1208155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18605.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1208155 is about 1099.1610437056. The cubic root of 1208155 is about 106.5060353505.

The spelling of 1208155 in words is "one million, two hundred eight thousand, one hundred fifty-five".