1223385 has 8 divisors (see below), whose sum is σ = 1957440. Its totient is φ = 652464.

The previous prime is 1223381. The next prime is 1223419. The reversal of 1223385 is 5833221.

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

It is not a de Polignac number, because 1223385 - 2² = 1223381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40765 + ... + 40794.

It is an arithmetic number, because the mean of its divisors is an integer number (244680).

2^1223385 is an apocalyptic number.

1223385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223385 is a deficient number, since it is larger than the sum of its proper divisors (734055).

1223385 is an equidigital number, since it uses as much as digits as its factorization.

1223385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81567.

The product of its digits is 1440, while the sum is 24.

The square root of 1223385 is about 1106.0673578042. The cubic root of 1223385 is about 106.9517061591.

The spelling of 1223385 in words is "one million, two hundred twenty-three thousand, three hundred eighty-five".