9106138 has 4 divisors (see below), whose sum is σ = 13659210. Its totient is φ = 4553068.

The previous prime is 9106121. The next prime is 9106151. The reversal of 9106138 is 8316019.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8316019 = 83 ⋅100193.

It can be written as a sum of positive squares in only one way, i.e., 8661249 + 444889 = 2943^2 + 667^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2276533 + ... + 2276536.

Almost surely, 2^9106138 is an apocalyptic number.

9106138 is a deficient number, since it is larger than the sum of its proper divisors (4553072).

9106138 is a wasteful number, since it uses less digits than its factorization.

9106138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553071.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 9106138 is about 3017.6378178966. The cubic root of 9106138 is about 208.8228774911.

The spelling of 9106138 in words is "nine million, one hundred six thousand, one hundred thirty-eight".