9139123 has 4 divisors (see below), whose sum is σ = 10444720. Its totient is φ = 7833528.

The previous prime is 9139099. The next prime is 9139139. The reversal of 9139123 is 3219319.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9139123 - 2²¹ = 7041971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9139091 and 9139100.

It is not an unprimeable number, because it can be changed into a prime (9139153) 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, 652788 + ... + 652801.

It is an arithmetic number, because the mean of its divisors is an integer number (2611180).

Almost surely, 2^9139123 is an apocalyptic number.

9139123 is a deficient number, since it is larger than the sum of its proper divisors (1305597).

9139123 is a wasteful number, since it uses less digits than its factorization.

9139123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305596.

The product of its digits is 1458, while the sum is 28.

The square root of 9139123 is about 3023.0982451783. The cubic root of 9139123 is about 209.0747121153.

The spelling of 9139123 in words is "nine million, one hundred thirty-nine thousand, one hundred twenty-three".