7081123 has 4 divisors (see below), whose sum is σ = 8092720. Its totient is φ = 6069528.

The previous prime is 7081117. The next prime is 7081157. The reversal of 7081123 is 3211807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3211807 = 241 ⋅13327.

It is a cyclic number.

It is not a de Polignac number, because 7081123 - 2²¹ = 4983971 is a prime.

It is a super-2 number, since 2×7081123² = 100284605882258, which contains 22 as substring.

It is a Duffinian number.

7081123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7081094 and 7081103.

It is not an unprimeable number, because it can be changed into a prime (7081183) 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, 505788 + ... + 505801.

It is an arithmetic number, because the mean of its divisors is an integer number (2023180).

Almost surely, 2^7081123 is an apocalyptic number.

7081123 is a deficient number, since it is larger than the sum of its proper divisors (1011597).

7081123 is a wasteful number, since it uses less digits than its factorization.

7081123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011596.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 7081123 is about 2661.0379553851. The cubic root of 7081123 is about 192.0292472083.

The spelling of 7081123 in words is "seven million, eighty-one thousand, one hundred twenty-three".