161102227 has 16 divisors (see below), whose sum is σ = 190562400. Its totient is φ = 134265600.

The previous prime is 161102219. The next prime is 161102231. The reversal of 161102227 is 722201161.

It is a happy number.

161102227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 161102227 - 2³ = 161102219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161102198 and 161102207.

It is not an unprimeable number, because it can be changed into a prime (161102287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17527 + ... + 25087.

It is an arithmetic number, because the mean of its divisors is an integer number (11910150).

Almost surely, 2^161102227 is an apocalyptic number.

161102227 is a deficient number, since it is larger than the sum of its proper divisors (29460173).

161102227 is a wasteful number, since it uses less digits than its factorization.

161102227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 161102227 is about 12692.6052093335. The cubic root of 161102227 is about 544.1272984154.

Adding to 161102227 its reverse (722201161), we get a palindrome (883303388).

The spelling of 161102227 in words is "one hundred sixty-one million, one hundred two thousand, two hundred twenty-seven".