109829825 has 18 divisors (see below), whose sum is σ = 158425686. Its totient is φ = 75311040.

The previous prime is 109829813. The next prime is 109829849. The reversal of 109829825 is 528928901.

It can be written as a sum of positive squares in 3 ways, for example, as 34000561 + 75829264 = 5831^2 + 8708^2 .

It is not a de Polignac number, because 109829825 - 2¹⁴ = 109813441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43604 + ... + 46053.

It is an arithmetic number, because the mean of its divisors is an integer number (8801427).

Almost surely, 2^109829825 is an apocalyptic number.

It is an amenable number.

109829825 is a deficient number, since it is larger than the sum of its proper divisors (48595861).

109829825 is an equidigital number, since it uses as much as digits as its factorization.

109829825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89681 (or 89669 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 109829825 is about 10479.9725667580. The cubic root of 109829825 is about 478.8947733692.

The spelling of 109829825 in words is "one hundred nine million, eight hundred twenty-nine thousand, eight hundred twenty-five".