102040186 has 8 divisors (see below), whose sum is σ = 153135360. Its totient is φ = 50995068.

The previous prime is 102040181. The next prime is 102040187. The reversal of 102040186 is 681040201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (102040181) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6916 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (19141920).

Almost surely, 2^102040186 is an apocalyptic number.

102040186 is a deficient number, since it is larger than the sum of its proper divisors (51095174).

102040186 is a wasteful number, since it uses less digits than its factorization.

102040186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25028.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 102040186 is about 10101.4942459024. The cubic root of 102040186 is about 467.2942249759.

Adding to 102040186 its reverse (681040201), we get a palindrome (783080387).

The spelling of 102040186 in words is "one hundred two million, forty thousand, one hundred eighty-six".