7131243 has 8 divisors (see below), whose sum is σ = 10866688. Its totient is φ = 4074984.

The previous prime is 7131217. The next prime is 7131259. The reversal of 7131243 is 3421317.

7131243 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7131243 - 2⁹ = 7130731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 339583 = 7131243 / (7 + 1 + 3 + 1 + 2 + 4 + 3).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (7130243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169771 + ... + 169812.

It is an arithmetic number, because the mean of its divisors is an integer number (1358336).

Almost surely, 2^7131243 is an apocalyptic number.

7131243 is a deficient number, since it is larger than the sum of its proper divisors (3735445).

7131243 is a wasteful number, since it uses less digits than its factorization.

7131243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339593.

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

The square root of 7131243 is about 2670.4387279996. The cubic root of 7131243 is about 192.4812417770.

The spelling of 7131243 in words is "seven million, one hundred thirty-one thousand, two hundred forty-three".