123144243 has 8 divisors (see below), whose sum is σ = 173850768. Its totient is φ = 77266944.

The previous prime is 123144223. The next prime is 123144257. The reversal of 123144243 is 342441321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123144243 - 2²⁵ = 89589811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123144223) 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 7 ways as a sum of consecutive naturals, for example, 1207246 + ... + 1207347.

It is an arithmetic number, because the mean of its divisors is an integer number (21731346).

Almost surely, 2^123144243 is an apocalyptic number.

123144243 is a deficient number, since it is larger than the sum of its proper divisors (50706525).

123144243 is a wasteful number, since it uses less digits than its factorization.

123144243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414613.

The product of its digits is 2304, while the sum is 24.

The square root of 123144243 is about 11097.0375776601. The cubic root of 123144243 is about 497.5133105872.

Adding to 123144243 its reverse (342441321), we get a palindrome (465585564).

The spelling of 123144243 in words is "one hundred twenty-three million, one hundred forty-four thousand, two hundred forty-three".