1205712 has 40 divisors (see below), whose sum is σ = 3462080. Its totient is φ = 401760.

The previous prime is 1205707. The next prime is 1205713. The reversal of 1205712 is 2175021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964 + ... + 1827.

It is an arithmetic number, because the mean of its divisors is an integer number (86552).

2^1205712 is an apocalyptic number.

1205712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1205712 is an abundant number, since it is smaller than the sum of its proper divisors (2256368).

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

1205712 is a wasteful number, since it uses less digits than its factorization.

1205712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1205712 is about 1098.0491792265. The cubic root of 1205712 is about 106.4341985910.

It can be divided in two parts, 120571 and 2, that multiplied together give a palindrome (241142).

The spelling of 1205712 in words is "one million, two hundred five thousand, seven hundred twelve".