108194458 has 4 divisors (see below), whose sum is σ = 162291690. Its totient is φ = 54097228.

The previous prime is 108194357. The next prime is 108194459. The reversal of 108194458 is 854491801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 854491801 = 37 ⋅23094373.

It can be written as a sum of positive squares in only one way, i.e., 100942209 + 7252249 = 10047^2 + 2693^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 108194458.

It is not an unprimeable number, because it can be changed into a prime (108194459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27048613 + ... + 27048616.

Almost surely, 2^108194458 is an apocalyptic number.

108194458 is a deficient number, since it is larger than the sum of its proper divisors (54097232).

108194458 is an equidigital number, since it uses as much as digits as its factorization.

108194458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54097231.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 108194458 is about 10401.6565026923. The cubic root of 108194458 is about 476.5059616589.

The spelling of 108194458 in words is "one hundred eight million, one hundred ninety-four thousand, four hundred fifty-eight".