102308 has 6 divisors (see below), whose sum is σ = 179046. Its totient is φ = 51152.

The previous prime is 102301. The next prime is 102317. The reversal of 102308 is 803201.

It can be written as a sum of positive squares in only one way, i.e., 61504 + 40804 = 248^2 + 202^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 102292 and 102301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102301) by changing a digit.

102308 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12785 + ... + 12792.

It is an arithmetic number, because the mean of its divisors is an integer number (29841).

2¹⁰²³⁰⁸ is an apocalyptic number.

It is an amenable number.

102308 is a deficient number, since it is larger than the sum of its proper divisors (76738).

102308 is a wasteful number, since it uses less digits than its factorization.

102308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25581 (or 25579 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102308 is about 319.8562176979. The cubic root of 102308 is about 46.7702686950.

Adding to 102308 its reverse (803201), we get a palindrome (905509).

The spelling of 102308 in words is "one hundred two thousand, three hundred eight".