102530885 has 16 divisors (see below), whose sum is σ = 128758896. Its totient is φ = 78294528.

The previous prime is 102530881. The next prime is 102530917. The reversal of 102530885 is 588035201.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 24137569 + 78393316 = 4913^2 + 8854^2 .

It is a cyclic number.

It is not a de Polignac number, because 102530885 - 2² = 102530881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102530881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4577 + ... + 15033.

It is an arithmetic number, because the mean of its divisors is an integer number (8047431).

Almost surely, 2^102530885 is an apocalyptic number.

It is an amenable number.

102530885 is a deficient number, since it is larger than the sum of its proper divisors (26228011).

102530885 is a wasteful number, since it uses less digits than its factorization.

102530885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10552.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 102530885 is about 10125.7535522054. The cubic root of 102530885 is about 468.0420814061.

The spelling of 102530885 in words is "one hundred two million, five hundred thirty thousand, eight hundred eighty-five".