108199749 has 16 divisors (see below), whose sum is σ = 166479872. Its totient is φ = 61226928.

The previous prime is 108199733. The next prime is 108199757. The reversal of 108199749 is 947991801.

It is not a de Polignac number, because 108199749 - 2⁴ = 108199733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108199698 and 108199707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108199709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22849 + ... + 27174.

It is an arithmetic number, because the mean of its divisors is an integer number (10404992).

Almost surely, 2^108199749 is an apocalyptic number.

It is an amenable number.

108199749 is a deficient number, since it is larger than the sum of its proper divisors (58280123).

108199749 is a wasteful number, since it uses less digits than its factorization.

108199749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50136.

The product of its (nonzero) digits is 163296, while the sum is 48.

The square root of 108199749 is about 10401.9108340727. The cubic root of 108199749 is about 476.5137290067.

The spelling of 108199749 in words is "one hundred eight million, one hundred ninety-nine thousand, seven hundred forty-nine".