9138143 has 4 divisors (see below), whose sum is σ = 10443600. Its totient is φ = 7832688.

The previous prime is 9138139. The next prime is 9138169. The reversal of 9138143 is 3418319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3418319 = 37 ⋅92387.

It is a cyclic number.

It is not a de Polignac number, because 9138143 - 2² = 9138139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652718 + ... + 652731.

It is an arithmetic number, because the mean of its divisors is an integer number (2610900).

Almost surely, 2^9138143 is an apocalyptic number.

9138143 is a deficient number, since it is larger than the sum of its proper divisors (1305457).

9138143 is a wasteful number, since it uses less digits than its factorization.

9138143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305456.

The product of its digits is 2592, while the sum is 29.

The square root of 9138143 is about 3022.9361554621. The cubic root of 9138143 is about 209.0672387308.

The spelling of 9138143 in words is "nine million, one hundred thirty-eight thousand, one hundred forty-three".