1227215 has 16 divisors (see below), whose sum is σ = 1640736. Its totient is φ = 873600.

The previous prime is 1227181. The next prime is 1227241. The reversal of 1227215 is 5127221.

It is not a de Polignac number, because 1227215 - 2⁶ = 1227151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2705 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (102546).

2^1227215 is an apocalyptic number.

1227215 is a deficient number, since it is larger than the sum of its proper divisors (413521).

1227215 is a wasteful number, since it uses less digits than its factorization.

1227215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its digits is 280, while the sum is 20.

The square root of 1227215 is about 1107.7973641420. The cubic root of 1227215 is about 107.0631996277.

It can be divided in two parts, 122 and 7215, that added together give a palindrome (7337).

The spelling of 1227215 in words is "one million, two hundred twenty-seven thousand, two hundred fifteen".