105800198 has 8 divisors (see below), whose sum is σ = 181371792. Its totient is φ = 45342936.

The previous prime is 105800173. The next prime is 105800237. The reversal of 105800198 is 891008501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105800198² = 22387363793678408, which contains 22 as substring.

It is a congruent number.

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, 3778565 + ... + 3778592.

It is an arithmetic number, because the mean of its divisors is an integer number (22671474).

Almost surely, 2^105800198 is an apocalyptic number.

105800198 is a deficient number, since it is larger than the sum of its proper divisors (75571594).

105800198 is an equidigital number, since it uses as much as digits as its factorization.

105800198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557166.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 105800198 is about 10285.9223213089. The cubic root of 105800198 is about 472.9648074867.

Adding to 105800198 its reverse (891008501), we get a palindrome (996808699).

The spelling of 105800198 in words is "one hundred five million, eight hundred thousand, one hundred ninety-eight".