161826226 has 16 divisors (see below), whose sum is σ = 244671840. Its totient is φ = 80272000.

The previous prime is 161826209. The next prime is 161826227. The reversal of 161826226 is 622628161.

It is a junction number, because it is equal to n+sod(n) for n = 161826191 and 161826200.

It is not an unprimeable number, because it can be changed into a prime (161826227) 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 7 ways as a sum of consecutive naturals, for example, 173730 + ... + 174658.

It is an arithmetic number, because the mean of its divisors is an integer number (15291990).

Almost surely, 2^161826226 is an apocalyptic number.

161826226 is a deficient number, since it is larger than the sum of its proper divisors (82845614).

161826226 is a wasteful number, since it uses less digits than its factorization.

161826226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529.

The product of its digits is 13824, while the sum is 34.

The square root of 161826226 is about 12721.0937422849. The cubic root of 161826226 is about 544.9411894007.

The spelling of 161826226 in words is "one hundred sixty-one million, eight hundred twenty-six thousand, two hundred twenty-six".