7113231 has 16 divisors (see below), whose sum is σ = 10639200. Its totient is φ = 4696704.

The previous prime is 7113221. The next prime is 7113299. The reversal of 7113231 is 1323117.

It is a de Polignac number, because none of the positive numbers 2^k-7113231 is a prime.

It is a super-2 number, since 2×7113231² = 101196110518722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7113221) 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 15 ways as a sum of consecutive naturals, for example, 1735 + ... + 4151.

It is an arithmetic number, because the mean of its divisors is an integer number (664950).

Almost surely, 2^7113231 is an apocalyptic number.

7113231 is a deficient number, since it is larger than the sum of its proper divisors (3525969).

7113231 is a wasteful number, since it uses less digits than its factorization.

7113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535 (or 2529 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 7113231 is about 2667.0641162147. The cubic root of 7113231 is about 192.3190496144.

Adding to 7113231 its reverse (1323117), we get a palindrome (8436348).

The spelling of 7113231 in words is "seven million, one hundred thirteen thousand, two hundred thirty-one".