108243992 has 8 divisors (see below), whose sum is σ = 202957500. Its totient is φ = 54121992.

The previous prime is 108243991. The next prime is 108243997. The reversal of 108243992 is 299342801.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108243991) by changing a digit.

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 as a sum of consecutive naturals, namely, 6765242 + ... + 6765257.

Almost surely, 2^108243992 is an apocalyptic number.

It is an amenable number.

108243992 is a deficient number, since it is larger than the sum of its proper divisors (94713508).

108243992 is a wasteful number, since it uses less digits than its factorization.

108243992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13530505 (or 13530501 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 108243992 is about 10404.0372932819. The cubic root of 108243992 is about 476.5786691574.

The spelling of 108243992 in words is "one hundred eight million, two hundred forty-three thousand, nine hundred ninety-two".