102543625 has 8 divisors (see below), whose sum is σ = 127974600. Its totient is φ = 82034800.

The previous prime is 102543601. The next prime is 102543641. The reversal of 102543625 is 526345201.

It can be written as a sum of positive squares in 4 ways, for example, as 10843849 + 91699776 = 3293^2 + 9576^2 .

It is not a de Polignac number, because 102543625 - 2⁹ = 102543113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102543593 and 102543602.

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 7 ways as a sum of consecutive naturals, for example, 410050 + ... + 410299.

It is an arithmetic number, because the mean of its divisors is an integer number (15996825).

Almost surely, 2^102543625 is an apocalyptic number.

It is an amenable number.

102543625 is a deficient number, since it is larger than the sum of its proper divisors (25430975).

102543625 is an frugal number, since it uses more digits than its factorization.

102543625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820364 (or 820354 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 102543625 is about 10126.3826216473. The cubic root of 102543625 is about 468.0614661640.

Adding to 102543625 its reverse (526345201), we get a palindrome (628888826).

The spelling of 102543625 in words is "one hundred two million, five hundred forty-three thousand, six hundred twenty-five".