7243131 has 16 divisors (see below), whose sum is σ = 11264000. Its totient is φ = 4138344.

The previous prime is 7243129. The next prime is 7243147. The reversal of 7243131 is 1313427.

It is not a de Polignac number, because 7243131 - 2¹ = 7243129 is a prime.

It is a super-2 number, since 2×7243131² = 104925893366322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7243098 and 7243107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7243111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2491 + ... + 4548.

It is an arithmetic number, because the mean of its divisors is an integer number (704000).

Almost surely, 2^7243131 is an apocalyptic number.

7243131 is a deficient number, since it is larger than the sum of its proper divisors (4020869).

7243131 is an equidigital number, since it uses as much as digits as its factorization.

7243131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7063 (or 7049 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 7243131 is about 2691.3065600188. The cubic root of 7243131 is about 193.4826884605.

Adding to 7243131 its reverse (1313427), we get a palindrome (8556558).

The spelling of 7243131 in words is "seven million, two hundred forty-three thousand, one hundred thirty-one".