1212285 has 8 divisors (see below), whose sum is σ = 1939680. Its totient is φ = 646544.

The previous prime is 1212283. The next prime is 1212293. The reversal of 1212285 is 5822121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212285 - 2¹ = 1212283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212283) 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, 40395 + ... + 40424.

It is an arithmetic number, because the mean of its divisors is an integer number (242460).

2^1212285 is an apocalyptic number.

1212285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1212285 is a deficient number, since it is larger than the sum of its proper divisors (727395).

1212285 is an equidigital number, since it uses as much as digits as its factorization.

1212285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80827.

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

The square root of 1212285 is about 1101.0381464781. The cubic root of 1212285 is about 106.6272586630.

The spelling of 1212285 in words is "one million, two hundred twelve thousand, two hundred eighty-five".