1223808215 has 8 divisors (see below), whose sum is σ = 1678365600. Its totient is φ = 839182752.

The previous prime is 1223808211. The next prime is 1223808227. The reversal of 1223808215 is 5128083221.

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 1223808215 - 2² = 1223808211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223808211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17482940 + ... + 17483009.

It is an arithmetic number, because the mean of its divisors is an integer number (209795700).

Almost surely, 2^1223808215 is an apocalyptic number.

1223808215 is a deficient number, since it is larger than the sum of its proper divisors (454557385).

1223808215 is an equidigital number, since it uses as much as digits as its factorization.

1223808215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34965961.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1223808215 is about 34982.9703570180. The cubic root of 1223808215 is about 1069.6403761316.

The spelling of 1223808215 in words is "one billion, two hundred twenty-three million, eight hundred eight thousand, two hundred fifteen".