123704144 has 20 divisors (see below), whose sum is σ = 240151296. Its totient is φ = 61729632.

The previous prime is 123704137. The next prime is 123704149. The reversal of 123704144 is 441407321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123704149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977 + ... + 15759.

Almost surely, 2^123704144 is an apocalyptic number.

It is an amenable number.

123704144 is a deficient number, since it is larger than the sum of its proper divisors (116447152).

123704144 is a wasteful number, since it uses less digits than its factorization.

123704144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15314 (or 15308 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 123704144 is about 11122.2364657473. The cubic root of 123704144 is about 498.2661867325.

The spelling of 123704144 in words is "one hundred twenty-three million, seven hundred four thousand, one hundred forty-four".