1225000003 has 2 divisors, whose sum is σ = 1225000004. Its totient is φ = 1225000002.

The previous prime is 1225000001. The next prime is 1225000027. The reversal of 1225000003 is 3000005221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1225000003 - 2¹ = 1225000001 is a prime.

Together with 1225000001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1225000001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612500001 + 612500002.

It is an arithmetic number, because the mean of its divisors is an integer number (612500002).

Almost surely, 2^1225000003 is an apocalyptic number.

1225000003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225000003 is an equidigital number, since it uses as much as digits as its factorization.

1225000003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1225000003 is about 35000.0000428571. Note that the first 4 decimals coincide. The cubic root of 1225000003 is about 1069.9874814385.

Adding to 1225000003 its reverse (3000005221), we get a palindrome (4225005224).

The spelling of 1225000003 in words is "one billion, two hundred twenty-five million, three", and thus it is an aban number.