1205166 has 8 divisors (see below), whose sum is σ = 2410344. Its totient is φ = 401720.

The previous prime is 1205159. The next prime is 1205173. The reversal of 1205166 is 6615021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1205159) and next prime (1205173).

It is a sphenic number, since it is the product of 3 distinct primes.

1205166 is an admirable number.

It is a congruent 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, 100425 + ... + 100436.

It is an arithmetic number, because the mean of its divisors is an integer number (301293).

2^1205166 is an apocalyptic number.

1205166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205166 is a wasteful number, since it uses less digits than its factorization.

1205166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200866.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1205166 is about 1097.8005283293. The cubic root of 1205166 is about 106.4181301195.

The spelling of 1205166 in words is "one million, two hundred five thousand, one hundred sixty-six".