1200856 has 8 divisors (see below), whose sum is σ = 2251620. Its totient is φ = 600424.

The previous prime is 1200839. The next prime is 1200869. The reversal of 1200856 is 6580021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75046 + ... + 75061.

2^1200856 is an apocalyptic number.

It is an amenable number.

1200856 is a deficient number, since it is larger than the sum of its proper divisors (1050764).

1200856 is a wasteful number, since it uses less digits than its factorization.

1200856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150113 (or 150109 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1200856 is about 1095.8357541165. The cubic root of 1200856 is about 106.2911185719.

Adding to 1200856 its reverse (6580021), we get a palindrome (7780877).

The spelling of 1200856 in words is "one million, two hundred thousand, eight hundred fifty-six".