161423104 has 18 divisors (see below), whose sum is σ = 322216160. Its totient is φ = 80711424.

The previous prime is 161423083. The next prime is 161423111. The reversal of 161423104 is 401324161.

161423104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 315024 + ... + 315535.

Almost surely, 2^161423104 is an apocalyptic number.

It is an amenable number.

161423104 is a deficient number, since it is larger than the sum of its proper divisors (160793056).

161423104 is an frugal number, since it uses more digits than its factorization.

161423104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630575 (or 630561 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 161423104 is about 12705.2392342687. The cubic root of 161423104 is about 544.4883158625.

Adding to 161423104 its reverse (401324161), we get a palindrome (562747265).

The spelling of 161423104 in words is "one hundred sixty-one million, four hundred twenty-three thousand, one hundred four".