102002115 has 16 divisors (see below), whose sum is σ = 164246688. Its totient is φ = 54053376.

The previous prime is 102002113. The next prime is 102002119. The reversal of 102002115 is 511200201.

It is not a de Polignac number, because 102002115 - 2¹ = 102002113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102002115.

It is not an unprimeable number, because it can be changed into a prime (102002113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19302 + ... + 24011.

It is an arithmetic number, because the mean of its divisors is an integer number (10265418).

Almost surely, 2^102002115 is an apocalyptic number.

102002115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102002115 is a deficient number, since it is larger than the sum of its proper divisors (62244573).

102002115 is a wasteful number, since it uses less digits than its factorization.

102002115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43478.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 102002115 is about 10099.6096459220. The cubic root of 102002115 is about 467.2361022169.

Adding to 102002115 its reverse (511200201), we get a palindrome (613202316).

The spelling of 102002115 in words is "one hundred two million, two thousand, one hundred fifteen".