144648222 has 16 divisors (see below), whose sum is σ = 289595280. Its totient is φ = 48166272.

The previous prime is 144648209. The next prime is 144648233. The reversal of 144648222 is 222846441.

It is a super-2 number, since 2×144648222² = 41846216255522568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5893 + ... + 18000.

It is an arithmetic number, because the mean of its divisors is an integer number (18099705).

Almost surely, 2^144648222 is an apocalyptic number.

144648222 is an abundant number, since it is smaller than the sum of its proper divisors (144947058).

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

144648222 is a wasteful number, since it uses less digits than its factorization.

144648222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24907.

The product of its digits is 24576, while the sum is 33.

The square root of 144648222 is about 12026.9789224061. The cubic root of 144648222 is about 524.9335934147.

The spelling of 144648222 in words is "one hundred forty-four million, six hundred forty-eight thousand, two hundred twenty-two".