1603321125 has 64 divisors (see below), whose sum is σ = 3057400320. Its totient is φ = 730944000.

The previous prime is 1603321117. The next prime is 1603321169. The reversal of 1603321125 is 5211233061.

It is not a de Polignac number, because 1603321125 - 2³ = 1603321117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1603321095 and 1603321104.

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 63 ways as a sum of consecutive naturals, for example, 1419561 + ... + 1420689.

It is an arithmetic number, because the mean of its divisors is an integer number (47771880).

Almost surely, 2^1603321125 is an apocalyptic number.

1603321125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1603321125 is a deficient number, since it is larger than the sum of its proper divisors (1454079195).

1603321125 is a wasteful number, since it uses less digits than its factorization.

1603321125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1603321125 is about 40041.4925421119. The cubic root of 1603321125 is about 1170.4157883750.

Adding to 1603321125 its reverse (5211233061), we get a palindrome (6814554186).

The spelling of 1603321125 in words is "one billion, six hundred three million, three hundred twenty-one thousand, one hundred twenty-five".