102144025 has 6 divisors (see below), whose sum is σ = 126658622. Its totient is φ = 81715200.

The previous prime is 102144001. The next prime is 102144037. The reversal of 102144025 is 520441201.

It can be written as a sum of positive squares in 3 ways, for example, as 7198489 + 94945536 = 2683^2 + 9744^2 .

It is not a de Polignac number, because 102144025 - 2¹⁹ = 101619737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102143993 and 102144011.

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, 2042856 + ... + 2042905.

Almost surely, 2^102144025 is an apocalyptic number.

It is an amenable number.

102144025 is a deficient number, since it is larger than the sum of its proper divisors (24514597).

102144025 is an equidigital number, since it uses as much as digits as its factorization.

102144025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085771 (or 4085766 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 102144025 is about 10106.6327231180. The cubic root of 102144025 is about 467.4526818762.

Adding to 102144025 its reverse (520441201), we get a palindrome (622585226).

The spelling of 102144025 in words is "one hundred two million, one hundred forty-four thousand, twenty-five".