1223503245 has 32 divisors (see below), whose sum is σ = 2178604800. Its totient is φ = 651488832.

The previous prime is 1223503231. The next prime is 1223503273. The reversal of 1223503245 is 5423053221.

It is a happy number.

1223503245 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1223503245 - 2⁵ = 1223503213 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81216 + ... + 95094.

It is an arithmetic number, because the mean of its divisors is an integer number (68081400).

Almost surely, 2^1223503245 is an apocalyptic number.

1223503245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223503245 is a deficient number, since it is larger than the sum of its proper divisors (955101555).

1223503245 is a wasteful number, since it uses less digits than its factorization.

1223503245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14546 (or 14540 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1223503245 is about 34978.6112503055. The cubic root of 1223503245 is about 1069.5515181657.

Adding to 1223503245 its reverse (5423053221), we get a palindrome (6646556466).

The spelling of 1223503245 in words is "one billion, two hundred twenty-three million, five hundred three thousand, two hundred forty-five".