161104422 has 8 divisors (see below), whose sum is σ = 322208856. Its totient is φ = 53701472.

The previous prime is 161104417. The next prime is 161104423. The reversal of 161104422 is 224401161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

161104422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161104423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13425363 + ... + 13425374.

It is an arithmetic number, because the mean of its divisors is an integer number (40276107).

Almost surely, 2^161104422 is an apocalyptic number.

161104422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161104422 is a wasteful number, since it uses less digits than its factorization.

161104422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26850742.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 161104422 is about 12692.6916767091. The cubic root of 161104422 is about 544.1297696289.

Adding to 161104422 its reverse (224401161), we get a palindrome (385505583).

The spelling of 161104422 in words is "one hundred sixty-one million, one hundred four thousand, four hundred twenty-two".