223142144 has 18 divisors (see below), whose sum is σ = 445413150. Its totient is φ = 111570944.

The previous prime is 223142107. The next prime is 223142173. The reversal of 223142144 is 441241322.

It can be written as a sum of positive squares in only one way, i.e., 222367744 + 774400 = 14912^2 + 880^2 .

It is a super-3 number, since 3×223142144³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435569 + ... + 436080.

It is an arithmetic number, because the mean of its divisors is an integer number (24745175).

Almost surely, 2^223142144 is an apocalyptic number.

It is an amenable number.

223142144 is a deficient number, since it is larger than the sum of its proper divisors (222271006).

223142144 is an frugal number, since it uses more digits than its factorization.

223142144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871665 (or 871651 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 223142144 is about 14937.9430980306. The cubic root of 223142144 is about 606.5415180136.

Adding to 223142144 its reverse (441241322), we get a palindrome (664383466).

The spelling of 223142144 in words is "two hundred twenty-three million, one hundred forty-two thousand, one hundred forty-four".