123035138 has 8 divisors (see below), whose sum is σ = 189540732. Its totient is φ = 59854896.

The previous prime is 123035131. The next prime is 123035141. The reversal of 123035138 is 831530321.

It can be written as a sum of positive squares in 2 ways, for example, as 122921569 + 113569 = 11087^2 + 337^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123035131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831245 + ... + 831392.

Almost surely, 2^123035138 is an apocalyptic number.

123035138 is a deficient number, since it is larger than the sum of its proper divisors (66505594).

123035138 is a wasteful number, since it uses less digits than its factorization.

123035138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662676.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 123035138 is about 11092.1205366693. The cubic root of 123035138 is about 497.3663359845.

Adding to 123035138 its reverse (831530321), we get a palindrome (954565459).

The spelling of 123035138 in words is "one hundred twenty-three million, thirty-five thousand, one hundred thirty-eight".