7161123 has 4 divisors (see below), whose sum is σ = 9548168. Its totient is φ = 4774080.

The previous prime is 7161109. The next prime is 7161137. The reversal of 7161123 is 3211617.

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

It is an interprime number because it is at equal distance from previous prime (7161109) and next prime (7161137).

It is not a de Polignac number, because 7161123 - 2⁴ = 7161107 is a prime.

It is a super-2 number, since 2×7161123² = 102563365242258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7161123.

It is not an unprimeable number, because it can be changed into a prime (7161103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193518 + ... + 1193523.

It is an arithmetic number, because the mean of its divisors is an integer number (2387042).

Almost surely, 2^7161123 is an apocalyptic number.

7161123 is a deficient number, since it is larger than the sum of its proper divisors (2387045).

7161123 is a wasteful number, since it uses less digits than its factorization.

7161123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387044.

The product of its digits is 252, while the sum is 21.

The square root of 7161123 is about 2676.0274662268. The cubic root of 7161123 is about 192.7497001380.

The spelling of 7161123 in words is "seven million, one hundred sixty-one thousand, one hundred twenty-three".