161234227 has 16 divisors (see below), whose sum is σ = 204026112. Its totient is φ = 123757920.

The previous prime is 161234207. The next prime is 161234237. The reversal of 161234227 is 722432161.

It is not a de Polignac number, because 161234227 - 2¹¹ = 161232179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161234195 and 161234204.

It is not an unprimeable number, because it can be changed into a prime (161234207) 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, 10468 + ... + 20785.

It is an arithmetic number, because the mean of its divisors is an integer number (12751632).

Almost surely, 2^161234227 is an apocalyptic number.

161234227 is a deficient number, since it is larger than the sum of its proper divisors (42791885).

161234227 is a wasteful number, since it uses less digits than its factorization.

161234227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31338.

The product of its digits is 4032, while the sum is 28.

The square root of 161234227 is about 12697.8040227435. The cubic root of 161234227 is about 544.2758690817.

Adding to 161234227 its reverse (722432161), we get a palindrome (883666388).

The spelling of 161234227 in words is "one hundred sixty-one million, two hundred thirty-four thousand, two hundred twenty-seven".