144622243 has 16 divisors (see below), whose sum is σ = 157731840. Its totient is φ = 132148800.

The previous prime is 144622237. The next prime is 144622249. The reversal of 144622243 is 342226441.

It is an interprime number because it is at equal distance from previous prime (144622237) and next prime (144622249).

It is not a de Polignac number, because 144622243 - 2⁹ = 144621731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144622249) 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, 62263 + ... + 64543.

It is an arithmetic number, because the mean of its divisors is an integer number (9858240).

Almost surely, 2^144622243 is an apocalyptic number.

144622243 is a deficient number, since it is larger than the sum of its proper divisors (13109597).

144622243 is a wasteful number, since it uses less digits than its factorization.

144622243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its digits is 9216, while the sum is 28.

The square root of 144622243 is about 12025.8988437455. The cubic root of 144622243 is about 524.9021652918.

Adding to 144622243 its reverse (342226441), we get a palindrome (486848684).

The spelling of 144622243 in words is "one hundred forty-four million, six hundred twenty-two thousand, two hundred forty-three".