108220825 has 6 divisors (see below), whose sum is σ = 134193854. Its totient is φ = 86576640.

The previous prime is 108220823. The next prime is 108220829. The reversal of 108220825 is 528022801.

It can be written as a sum of positive squares in 3 ways, for example, as 18558864 + 89661961 = 4308^2 + 9469^2 .

It is not a de Polignac number, because 108220825 - 2¹ = 108220823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108220793 and 108220802.

It is not an unprimeable number, because it can be changed into a prime (108220823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2164392 + ... + 2164441.

Almost surely, 2^108220825 is an apocalyptic number.

It is an amenable number.

108220825 is a deficient number, since it is larger than the sum of its proper divisors (25973029).

108220825 is an equidigital number, since it uses as much as digits as its factorization.

108220825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328843 (or 4328838 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 108220825 is about 10402.9238678364. The cubic root of 108220825 is about 476.5446666981.

The spelling of 108220825 in words is "one hundred eight million, two hundred twenty thousand, eight hundred twenty-five".