123504055 has 8 divisors (see below), whose sum is σ = 148287744. Its totient is φ = 98748000.

The previous prime is 123504053. The next prime is 123504079. The reversal of 123504055 is 550405321.

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

It is not a de Polignac number, because 123504055 - 2¹ = 123504053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123504053) 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, 4705 + ... + 16405.

It is an arithmetic number, because the mean of its divisors is an integer number (18535968).

Almost surely, 2^123504055 is an apocalyptic number.

123504055 is a deficient number, since it is larger than the sum of its proper divisors (24783689).

123504055 is a wasteful number, since it uses less digits than its factorization.

123504055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13817.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 123504055 is about 11113.2378270241. The cubic root of 123504055 is about 497.9973965338.

Adding to 123504055 its reverse (550405321), we get a palindrome (673909376).

The spelling of 123504055 in words is "one hundred twenty-three million, five hundred four thousand, fifty-five".