1223415 has 24 divisors (see below), whose sum is σ = 2191488. Its totient is φ = 630720.

The previous prime is 1223381. The next prime is 1223419. The reversal of 1223415 is 5143221.

It is not a de Polignac number, because 1223415 - 2⁶ = 1223351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223419) 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 23 ways as a sum of consecutive naturals, for example, 957 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (91312).

2^1223415 is an apocalyptic number.

1223415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1223415 is a deficient number, since it is larger than the sum of its proper divisors (968073).

1223415 is a wasteful number, since it uses less digits than its factorization.

1223415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 916 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1223415 is about 1106.0809192821. The cubic root of 1223415 is about 106.9525803796.

Adding to 1223415 its reverse (5143221), we get a palindrome (6366636).

The spelling of 1223415 in words is "one million, two hundred twenty-three thousand, four hundred fifteen".