7113541 has 4 divisors (see below), whose sum is σ = 7287084. Its totient is φ = 6940000.

The previous prime is 7113527. The next prime is 7113553. The reversal of 7113541 is 1453117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1453117 = 23 ⋅63179.

It can be written as a sum of positive squares in 2 ways, for example, as 112225 + 7001316 = 335^2 + 2646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7113541 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

7113541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7113341) 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, 86710 + ... + 86791.

It is an arithmetic number, because the mean of its divisors is an integer number (1821771).

Almost surely, 2^7113541 is an apocalyptic number.

It is an amenable number.

7113541 is a deficient number, since it is larger than the sum of its proper divisors (173543).

7113541 is a wasteful number, since it uses less digits than its factorization.

7113541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173542.

The product of its digits is 420, while the sum is 22.

The square root of 7113541 is about 2667.1222319196. The cubic root of 7113541 is about 192.3218433771.

Adding to 7113541 its reverse (1453117), we get a palindrome (8566658).

The spelling of 7113541 in words is "seven million, one hundred thirteen thousand, five hundred forty-one".