227100144 has 80 divisors (see below), whose sum is σ = 624602880. Its totient is φ = 70855680.

The previous prime is 227100121. The next prime is 227100149. The reversal of 227100144 is 441001722.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 227100144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227100149) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 171517 + ... + 172835.

It is an arithmetic number, because the mean of its divisors is an integer number (7807536).

Almost surely, 2^227100144 is an apocalyptic number.

227100144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227100144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312301440).

227100144 is an abundant number, since it is smaller than the sum of its proper divisors (397502736).

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

227100144 is a wasteful number, since it uses less digits than its factorization.

227100144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 227100144 is about 15069.8422022263. The cubic root of 227100144 is about 610.1067124962.

Adding to 227100144 its reverse (441001722), we get a palindrome (668101866).

The spelling of 227100144 in words is "two hundred twenty-seven million, one hundred thousand, one hundred forty-four".