1223301285 has 20 divisors (see below), whose sum is σ = 2192881548. Its totient is φ = 652427136.

The previous prime is 1223301271. The next prime is 1223301293. The reversal of 1223301285 is 5821033221.

It can be written as a sum of positive squares in 2 ways, for example, as 820135044 + 403166241 = 28638^2 + 20079^2 .

It is not a de Polignac number, because 1223301285 - 2⁴ = 1223301269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 19 ways as a sum of consecutive naturals, for example, 1509844 + ... + 1510653.

Almost surely, 2^1223301285 is an apocalyptic number.

1223301285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223301285 is a deficient number, since it is larger than the sum of its proper divisors (969580263).

1223301285 is an equidigital number, since it uses as much as digits as its factorization.

1223301285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020514 (or 3020505 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1223301285 is about 34975.7242240958. The cubic root of 1223301285 is about 1069.4926657102.

The spelling of 1223301285 in words is "one billion, two hundred twenty-three million, three hundred one thousand, two hundred eighty-five".