144421118 has 4 divisors (see below), whose sum is σ = 216631680. Its totient is φ = 72210558.

The previous prime is 144421111. The next prime is 144421127. The reversal of 144421118 is 811124441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36105278 + ... + 36105281.

It is an arithmetic number, because the mean of its divisors is an integer number (54157920).

Almost surely, 2^144421118 is an apocalyptic number.

144421118 is a deficient number, since it is larger than the sum of its proper divisors (72210562).

144421118 is an equidigital number, since it uses as much as digits as its factorization.

144421118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72210561.

The product of its digits is 1024, while the sum is 26.

The square root of 144421118 is about 12017.5337736159. The cubic root of 144421118 is about 524.6587266557.

Adding to 144421118 its reverse (811124441), we get a palindrome (955545559).

The spelling of 144421118 in words is "one hundred forty-four million, four hundred twenty-one thousand, one hundred eighteen".