108143812 has 12 divisors (see below), whose sum is σ = 216287680. Its totient is φ = 46347336.

The previous prime is 108143767. The next prime is 108143821. The reversal of 108143812 is 218341801.

108143812 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 3862279 = 108143812 / (1 + 0 + 8 + 1 + 4 + 3 + 8 + 1 + 2).

It is an unprimeable number.

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, 1931112 + ... + 1931167.

Almost surely, 2^108143812 is an apocalyptic number.

It is an amenable number.

108143812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

108143812 is a wasteful number, since it uses less digits than its factorization.

108143812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862290 (or 3862288 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 108143812 is about 10399.2217016467. The cubic root of 108143812 is about 476.4315989853.

The spelling of 108143812 in words is "one hundred eight million, one hundred forty-three thousand, eight hundred twelve".