1200912 has 40 divisors (see below), whose sum is σ = 3142656. Its totient is φ = 395136.

The previous prime is 1200889. The next prime is 1200917. The reversal of 1200912 is 2190021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200891 and 1200900.

It is not an unprimeable number, because it can be changed into a prime (1200917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5998 + ... + 6194.

2^1200912 is an apocalyptic number.

1200912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200912 is an abundant number, since it is smaller than the sum of its proper divisors (1941744).

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

1200912 is a wasteful number, since it uses less digits than its factorization.

1200912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1200912 is about 1095.8613050929. The cubic root of 1200912 is about 106.2927707850.

Adding to 1200912 its reverse (2190021), we get a palindrome (3390933).

It can be divided in two parts, 12009 and 12, that added together give a palindrome (12021).

The spelling of 1200912 in words is "one million, two hundred thousand, nine hundred twelve".