7163231 has 4 divisors (see below), whose sum is σ = 7186872. Its totient is φ = 7139592.

The previous prime is 7163227. The next prime is 7163251. The reversal of 7163231 is 1323617.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323617 = 883 ⋅1499.

It is not a de Polignac number, because 7163231 - 2² = 7163227 is a prime.

It is a super-2 number, since 2×7163231² = 102623756718722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7163197 and 7163206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7163251) 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, 11360 + ... + 11973.

It is an arithmetic number, because the mean of its divisors is an integer number (1796718).

Almost surely, 2^7163231 is an apocalyptic number.

7163231 is a deficient number, since it is larger than the sum of its proper divisors (23641).

7163231 is a wasteful number, since it uses less digits than its factorization.

7163231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23640.

The product of its digits is 756, while the sum is 23.

The square root of 7163231 is about 2676.4213046529. The cubic root of 7163231 is about 192.7686113481.

Adding to 7163231 its reverse (1323617), we get a palindrome (8486848).

The spelling of 7163231 in words is "seven million, one hundred sixty-three thousand, two hundred thirty-one".