224154 has 32 divisors (see below), whose sum is σ = 570240. Its totient is φ = 63936.
The previous prime is 224153. The next prime is 224171. The reversal of 224154 is 451422.
224154 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a nialpdrome in base 12.
It is not an unprimeable number, because it can be changed into a prime (224153) 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 15 ways as a sum of consecutive naturals, for example, 82 + ... + 674.
It is an arithmetic number, because the mean of its divisors is an integer number (17820).
2224154 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 224154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285120).
224154 is an abundant number, since it is smaller than the sum of its proper divisors (346086).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
224154 is a wasteful number, since it uses less digits than its factorization.
224154 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 611 (or 605 counting only the distinct ones).
The product of its digits is 320, while the sum is 18.
The square root of 224154 is about 473.4490468889. The cubic root of 224154 is about 60.7456939487.
Adding to 224154 its reverse (451422), we get a palindrome (675576).
It can be divided in two parts, 224 and 154, that added together give a triangular number (378 = T27).
The spelling of 224154 in words is "two hundred twenty-four thousand, one hundred fifty-four".
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