1225624603 has 24 divisors (see below), whose sum is σ = 1471965264. Its totient is φ = 1016870400.

The previous prime is 1225624601. The next prime is 1225624619. The reversal of 1225624603 is 3064265221.

It is not a de Polignac number, because 1225624603 - 2¹ = 1225624601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225624601) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 260851 + ... + 265507.

It is an arithmetic number, because the mean of its divisors is an integer number (61331886).

Almost surely, 2^1225624603 is an apocalyptic number.

1225624603 is a deficient number, since it is larger than the sum of its proper divisors (246340661).

1225624603 is a wasteful number, since it uses less digits than its factorization.

1225624603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4843 (or 4836 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1225624603 is about 35008.9217628878. The cubic root of 1225624603 is about 1070.1693047379.

Adding to 1225624603 its reverse (3064265221), we get a palindrome (4289889824).

The spelling of 1225624603 in words is "one billion, two hundred twenty-five million, six hundred twenty-four thousand, six hundred three".