7200543 has 16 divisors (see below), whose sum is σ = 11241216. Its totient is φ = 4013760.

The previous prime is 7200521. The next prime is 7200551. The reversal of 7200543 is 3450027.

It is a happy number.

It is not a de Polignac number, because 7200543 - 2⁵ = 7200511 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7200553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3321 + ... + 5042.

It is an arithmetic number, because the mean of its divisors is an integer number (702576).

Almost surely, 2^7200543 is an apocalyptic number.

7200543 is a deficient number, since it is larger than the sum of its proper divisors (4040673).

7200543 is a wasteful number, since it uses less digits than its factorization.

7200543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8414.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 7200543 is about 2683.3827531681. The cubic root of 7200543 is about 193.1027310652.

The spelling of 7200543 in words is "seven million, two hundred thousand, five hundred forty-three".