1214805 has 16 divisors (see below), whose sum is σ = 1964160. Its totient is φ = 641088.

The previous prime is 1214767. The next prime is 1214819. The reversal of 1214805 is 5084121.

It is not a de Polignac number, because 1214805 - 2¹⁰ = 1213781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

2^1214805 is an apocalyptic number.

1214805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1214805 is a deficient number, since it is larger than the sum of its proper divisors (749355).

1214805 is a wasteful number, since it uses less digits than its factorization.

1214805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1214805 is about 1102.1819269068. The cubic root of 1214805 is about 106.7010902351.

Adding to 1214805 its reverse (5084121), we get a palindrome (6298926).

The spelling of 1214805 in words is "one million, two hundred fourteen thousand, eight hundred five".