161823054 has 8 divisors (see below), whose sum is σ = 323646120. Its totient is φ = 53941016.

The previous prime is 161823049. The next prime is 161823059. The reversal of 161823054 is 450328161.

161823054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161823049) and next prime (161823059).

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

161823054 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161823059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13485249 + ... + 13485260.

It is an arithmetic number, because the mean of its divisors is an integer number (40455765).

Almost surely, 2^161823054 is an apocalyptic number.

161823054 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.

161823054 is a wasteful number, since it uses less digits than its factorization.

161823054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26970514.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 161823054 is about 12720.9690668596. The cubic root of 161823054 is about 544.9376288638.

The spelling of 161823054 in words is "one hundred sixty-one million, eight hundred twenty-three thousand, fifty-four".