1208555 has 4 divisors (see below), whose sum is σ = 1450272. Its totient is φ = 966840.

The previous prime is 1208521. The next prime is 1208561. The reversal of 1208555 is 5558021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1208555 - 2⁸ = 1208299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120851 + ... + 120860.

It is an arithmetic number, because the mean of its divisors is an integer number (362568).

2^1208555 is an apocalyptic number.

1208555 is a deficient number, since it is larger than the sum of its proper divisors (241717).

1208555 is an equidigital number, since it uses as much as digits as its factorization.

1208555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241716.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1208555 is about 1099.3429856055. The cubic root of 1208555 is about 106.5177881784.

The spelling of 1208555 in words is "one million, two hundred eight thousand, five hundred fifty-five".