1223002045 has 4 divisors (see below), whose sum is σ = 1467602460. Its totient is φ = 978401632.

The previous prime is 1223002021. The next prime is 1223002063. The reversal of 1223002045 is 5402003221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 939483801 + 283518244 = 30651^2 + 16838^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223002045 - 2⁷ = 1223001917 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 122300200 + ... + 122300209.

It is an arithmetic number, because the mean of its divisors is an integer number (366900615).

Almost surely, 2^1223002045 is an apocalyptic number.

It is an amenable number.

1223002045 is a deficient number, since it is larger than the sum of its proper divisors (244600415).

1223002045 is an equidigital number, since it uses as much as digits as its factorization.

1223002045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244600414.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1223002045 is about 34971.4461382426. The cubic root of 1223002045 is about 1069.4054533208.

Adding to 1223002045 its reverse (5402003221), we get a palindrome (6625005266).

The spelling of 1223002045 in words is "one billion, two hundred twenty-three million, two thousand, forty-five".