9135123 has 4 divisors (see below), whose sum is σ = 12180168. Its totient is φ = 6090080.

The previous prime is 9135121. The next prime is 9135127. The reversal of 9135123 is 3215319.

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: 3215319 = 3 ⋅1071773.

It is a cyclic number.

It is not a de Polignac number, because 9135123 - 2¹ = 9135121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9135093 and 9135102.

It is not an unprimeable number, because it can be changed into a prime (9135121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1522518 + ... + 1522523.

It is an arithmetic number, because the mean of its divisors is an integer number (3045042).

Almost surely, 2^9135123 is an apocalyptic number.

9135123 is a deficient number, since it is larger than the sum of its proper divisors (3045045).

9135123 is a wasteful number, since it uses less digits than its factorization.

9135123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045044.

The product of its digits is 810, while the sum is 24.

The square root of 9135123 is about 3022.4365998313. The cubic root of 9135123 is about 209.0442051441.

The spelling of 9135123 in words is "nine million, one hundred thirty-five thousand, one hundred twenty-three".