102168842 has 16 divisors (see below), whose sum is σ = 156492000. Its totient is φ = 50009232.

The previous prime is 102168811. The next prime is 102168851. The reversal of 102168842 is 248861201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102168799 and 102168808.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 67409 + ... + 68907.

It is an arithmetic number, because the mean of its divisors is an integer number (9780750).

Almost surely, 2^102168842 is an apocalyptic number.

102168842 is a deficient number, since it is larger than the sum of its proper divisors (54323158).

102168842 is a wasteful number, since it uses less digits than its factorization.

102168842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 102168842 is about 10107.8604066340. The cubic root of 102168842 is about 467.4905363789.

The spelling of 102168842 in words is "one hundred two million, one hundred sixty-eight thousand, eight hundred forty-two".