123500106 has 16 divisors (see below), whose sum is σ = 274444800. Its totient is φ = 41166684.

The previous prime is 123500093. The next prime is 123500107. The reversal of 123500106 is 601005321.

It is a super-2 number, since 2×123500106² = 30504552364022472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123500107) 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, 1143466 + ... + 1143573.

It is an arithmetic number, because the mean of its divisors is an integer number (17152800).

Almost surely, 2^123500106 is an apocalyptic number.

123500106 is an abundant number, since it is smaller than the sum of its proper divisors (150944694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123500106 is a wasteful number, since it uses less digits than its factorization.

123500106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287050 (or 2287044 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 123500106 is about 11113.0601546109. The cubic root of 123500106 is about 497.9920887116.

Adding to 123500106 its reverse (601005321), we get a palindrome (724505427).

The spelling of 123500106 in words is "one hundred twenty-three million, five hundred thousand, one hundred six".