1205216 has 12 divisors (see below), whose sum is σ = 2372832. Its totient is φ = 602592.

The previous prime is 1205179. The next prime is 1205219. The reversal of 1205216 is 6125021.

It is a junction number, because it is equal to n+sod(n) for n = 1205194 and 1205203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18800 + ... + 18863.

It is an arithmetic number, because the mean of its divisors is an integer number (197736).

2^1205216 is an apocalyptic number.

1205216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1205216 is a deficient number, since it is larger than the sum of its proper divisors (1167616).

1205216 is an equidigital number, since it uses as much as digits as its factorization.

1205216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37673 (or 37665 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1205216 is about 1097.8233009005. The cubic root of 1205216 is about 106.4196017931.

The spelling of 1205216 in words is "one million, two hundred five thousand, two hundred sixteen".