109516225 has 81 divisors (see below), whose sum is σ = 178818633. Its totient is φ = 66306240.

The previous prime is 109516217. The next prime is 109516237. The reversal of 109516225 is 522615901.

The square root of 109516225 is 10465.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 28227969 + 81288256 = 5313^2 + 9016^2 .

It is not a de Polignac number, because 109516225 - 2³ = 109516217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4761564 + ... + 4761586.

Almost surely, 2^109516225 is an apocalyptic number.

109516225 is the 10465-th square number.

109516225 is the 5233-rd centered octagonal number.

It is an amenable number.

109516225 is a deficient number, since it is larger than the sum of its proper divisors (69302408).

109516225 is a wasteful number, since it uses less digits than its factorization.

109516225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The cubic root of 109516225 is about 478.4385385620.

The spelling of 109516225 in words is "one hundred nine million, five hundred sixteen thousand, two hundred twenty-five".