123500054 has 4 divisors (see below), whose sum is σ = 185250084. Its totient is φ = 61750026.

The previous prime is 123500011. The next prime is 123500059. The reversal of 123500054 is 450005321.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123499999 and 123500035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123500059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30875012 + ... + 30875015.

It is an arithmetic number, because the mean of its divisors is an integer number (46312521).

Almost surely, 2^123500054 is an apocalyptic number.

123500054 is a deficient number, since it is larger than the sum of its proper divisors (61750030).

123500054 is an equidigital number, since it uses as much as digits as its factorization.

123500054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61750029.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 123500054 is about 11113.0578150210. The cubic root of 123500054 is about 497.9920188180.

Adding to 123500054 its reverse (450005321), we get a palindrome (573505375).

The spelling of 123500054 in words is "one hundred twenty-three million, five hundred thousand, fifty-four".