123646423 has 8 divisors (see below), whose sum is σ = 132874992. Its totient is φ = 114635136.

The previous prime is 123646417. The next prime is 123646441. The reversal of 123646423 is 324646321.

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

It is a cyclic number.

It is not a de Polignac number, because 123646423 - 2⁹ = 123645911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123646483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53140 + ... + 55417.

It is an arithmetic number, because the mean of its divisors is an integer number (16609374).

Almost surely, 2^123646423 is an apocalyptic number.

123646423 is a deficient number, since it is larger than the sum of its proper divisors (9228569).

123646423 is a wasteful number, since it uses less digits than its factorization.

123646423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108641.

The product of its digits is 20736, while the sum is 31.

The square root of 123646423 is about 11119.6413161576. The cubic root of 123646423 is about 498.1886768069.

It can be divided in two parts, 1236 and 46423, that multiplied together give a triangular number (57378828 = T₁₀₇₁₂).

The spelling of 123646423 in words is "one hundred twenty-three million, six hundred forty-six thousand, four hundred twenty-three".