7133123 has 4 divisors (see below), whose sum is σ = 7139520. Its totient is φ = 7126728.

The previous prime is 7133117. The next prime is 7133129. The reversal of 7133123 is 3213317.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (7133117) and next prime (7133129).

It is a cyclic number.

It is not a de Polignac number, because 7133123 - 2⁴ = 7133107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7133095 and 7133104.

It is not an unprimeable number, because it can be changed into a prime (7133129) 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, 1040 + ... + 3917.

It is an arithmetic number, because the mean of its divisors is an integer number (1784880).

Almost surely, 2^7133123 is an apocalyptic number.

7133123 is a deficient number, since it is larger than the sum of its proper divisors (6397).

7133123 is a wasteful number, since it uses less digits than its factorization.

7133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396.

The product of its digits is 378, while the sum is 20.

The square root of 7133123 is about 2670.7907068881. The cubic root of 7133123 is about 192.4981548145.

The spelling of 7133123 in words is "seven million, one hundred thirty-three thousand, one hundred twenty-three".