109872325 has 6 divisors (see below), whose sum is σ = 136241714. Its totient is φ = 87897840.

The previous prime is 109872319. The next prime is 109872341. The reversal of 109872325 is 523278901.

It is a Cunningham number, because it is equal to 10482²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 109872324 = 1^2 + 10482^2 .

It is not a de Polignac number, because 109872325 - 2³ = 109872317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 2197422 + ... + 2197471.

Almost surely, 2^109872325 is an apocalyptic number.

It is an amenable number.

109872325 is a deficient number, since it is larger than the sum of its proper divisors (26369389).

109872325 is an equidigital number, since it uses as much as digits as its factorization.

109872325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394903 (or 4394898 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 109872325 is about 10482.0000477008. Note that the first 4 decimals coincide. The cubic root of 109872325 is about 478.9565368083.

The spelling of 109872325 in words is "one hundred nine million, eight hundred seventy-two thousand, three hundred twenty-five".