108105012 has 18 divisors (see below), whose sum is σ = 273265538. Its totient is φ = 36034992.

The previous prime is 108104981. The next prime is 108105059. The reversal of 108105012 is 210501801.

108105012 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 83064996 + 25040016 = 9114^2 + 5004^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

108105012 is strictly pandigital in base 9.

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 5 ways as a sum of consecutive naturals, for example, 1501423 + ... + 1501494.

Almost surely, 2^108105012 is an apocalyptic number.

108105012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

108105012 is an abundant number, since it is smaller than the sum of its proper divisors (165160526).

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

108105012 is a wasteful number, since it uses less digits than its factorization.

108105012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002927 (or 3002922 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 108105012 is about 10397.3560100633. The cubic root of 108105012 is about 476.3746138871.

Adding to 108105012 its reverse (210501801), we get a palindrome (318606813).

The spelling of 108105012 in words is "one hundred eight million, one hundred five thousand, twelve".