102186012 has 24 divisors (see below), whose sum is σ = 239094016. Its totient is φ = 33967728.

The previous prime is 102186001. The next prime is 102186059. The reversal of 102186012 is 210681201.

It is a self number, because there is not a number n which added to its sum of digits gives 102186012.

It is a congruent number.

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, 7198 + ... + 16005.

Almost surely, 2^102186012 is an apocalyptic number.

102186012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102186012 is an abundant number, since it is smaller than the sum of its proper divisors (136908004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102186012 is a wasteful number, since it uses less digits than its factorization.

102186012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23577 (or 23575 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 102186012 is about 10108.7097099481. The cubic root of 102186012 is about 467.5167229760.

The spelling of 102186012 in words is "one hundred two million, one hundred eighty-six thousand, twelve".