1223503885 has 8 divisors (see below), whose sum is σ = 1471694616. Its totient is φ = 976476480.

The previous prime is 1223503873. The next prime is 1223503907. The reversal of 1223503885 is 5883053221.

It can be written as a sum of positive squares in 4 ways, for example, as 103999204 + 1119504681 = 10198^2 + 33459^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1223503885 is a prime.

It is a super-2 number, since 2×1223503885² = 2993923513220186450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 288514 + ... + 292723.

It is an arithmetic number, because the mean of its divisors is an integer number (183961827).

Almost surely, 2^1223503885 is an apocalyptic number.

It is an amenable number.

1223503885 is a deficient number, since it is larger than the sum of its proper divisors (248190731).

1223503885 is an equidigital number, since it uses as much as digits as its factorization.

1223503885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581663.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 1223503885 is about 34978.6203987521. The cubic root of 1223503885 is about 1069.5517046556.

The spelling of 1223503885 in words is "one billion, two hundred twenty-three million, five hundred three thousand, eight hundred eighty-five".