169865226 has 12 divisors (see below), whose sum is σ = 368041362. Its totient is φ = 56621736.

The previous prime is 169865221. The next prime is 169865243. The reversal of 169865226 is 622568961.

169865226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 132227001 + 37638225 = 11499^2 + 6135^2 .

It is not an unprimeable number, because it can be changed into a prime (169865221) by changing a digit.

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, 4718461 + ... + 4718496.

Almost surely, 2^169865226 is an apocalyptic number.

169865226 is an abundant number, since it is smaller than the sum of its proper divisors (198176136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169865226 is a wasteful number, since it uses less digits than its factorization.

169865226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9436965 (or 9436962 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 169865226 is about 13033.2354386775. The cubic root of 169865226 is about 553.8193944425.

The spelling of 169865226 in words is "one hundred sixty-nine million, eight hundred sixty-five thousand, two hundred twenty-six".