102003025 has 6 divisors (see below), whose sum is σ = 126483782. Its totient is φ = 81602400.

The previous prime is 102002987. The next prime is 102003037. The reversal of 102003025 is 520300201.

It can be written as a sum of positive squares in 3 ways, for example, as 638401 + 101364624 = 799^2 + 10068^2 .

It is not a de Polignac number, because 102003025 - 2⁷ = 102002897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102002996 and 102003014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2040036 + ... + 2040085.

Almost surely, 2^102003025 is an apocalyptic number.

It is an amenable number.

102003025 is a deficient number, since it is larger than the sum of its proper divisors (24480757).

102003025 is an equidigital number, since it uses as much as digits as its factorization.

102003025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080131 (or 4080126 counting only the distinct ones).

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

The square root of 102003025 is about 10099.6546970676. The cubic root of 102003025 is about 467.2374916769.

Adding to 102003025 its reverse (520300201), we get a palindrome (622303226).

It can be divided in two parts, 10200 and 3025, that added together give a square (13225 = 115²).

The spelling of 102003025 in words is "one hundred two million, three thousand, twenty-five".