1226215 has 8 divisors (see below), whose sum is σ = 1486368. Its totient is φ = 971040.

The previous prime is 1226213. The next prime is 1226237. The reversal of 1226215 is 5126221.

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

It is not a de Polignac number, because 1226215 - 2¹ = 1226213 is a prime.

It is a Duffinian number.

1226215 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1226192 and 1226201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 676 + ... + 1705.

It is an arithmetic number, because the mean of its divisors is an integer number (185796).

2^1226215 is an apocalyptic number.

1226215 is a deficient number, since it is larger than the sum of its proper divisors (260153).

1226215 is a wasteful number, since it uses less digits than its factorization.

1226215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489.

The product of its digits is 240, while the sum is 19.

The square root of 1226215 is about 1107.3459260773. The cubic root of 1226215 is about 107.0341114638.

It can be divided in two parts, 1226 and 215, that added together give a palindrome (1441).

The spelling of 1226215 in words is "one million, two hundred twenty-six thousand, two hundred fifteen".