144542222 has 16 divisors (see below), whose sum is σ = 238965552. Its totient is φ = 65022720.

The previous prime is 144542191. The next prime is 144542273. The reversal of 144542222 is 222245441.

It is a junction number, because it is equal to n+sod(n) for n = 144542191 and 144542200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31733 + ... + 36000.

It is an arithmetic number, because the mean of its divisors is an integer number (14935347).

Almost surely, 2^144542222 is an apocalyptic number.

144542222 is a deficient number, since it is larger than the sum of its proper divisors (94423330).

144542222 is a wasteful number, since it uses less digits than its factorization.

144542222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67843.

The product of its digits is 5120, while the sum is 26.

The square root of 144542222 is about 12022.5713555795. The cubic root of 144542222 is about 524.8053361443.

Adding to 144542222 its reverse (222245441), we get a palindrome (366787663).

The spelling of 144542222 in words is "one hundred forty-four million, five hundred forty-two thousand, two hundred twenty-two".