16069225 has 6 divisors (see below), whose sum is σ = 19925870. Its totient is φ = 12855360.

The previous prime is 16069189. The next prime is 16069243. The reversal of 16069225 is 52296061.

It can be written as a sum of positive squares in 3 ways, for example, as 173056 + 15896169 = 416^2 + 3987^2 .

It is not a de Polignac number, because 16069225 - 2²¹ = 13972073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321360 + ... + 321409.

Almost surely, 2^16069225 is an apocalyptic number.

It is an amenable number.

16069225 is a deficient number, since it is larger than the sum of its proper divisors (3856645).

16069225 is an equidigital number, since it uses as much as digits as its factorization.

16069225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642779 (or 642774 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 16069225 is about 4008.6437856213. The cubic root of 16069225 is about 252.3470956098.

The spelling of 16069225 in words is "sixteen million, sixty-nine thousand, two hundred twenty-five".