72543041 has 4 divisors (see below), whose sum is σ = 72620592. Its totient is φ = 72465492.

The previous prime is 72543011. The next prime is 72543047. The reversal of 72543041 is 14034527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72543041 - 2¹⁰ = 72542017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72543041.

It is not an unprimeable number, because it can be changed into a prime (72543047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37355 + ... + 39248.

It is an arithmetic number, because the mean of its divisors is an integer number (18155148).

Almost surely, 2^72543041 is an apocalyptic number.

It is an amenable number.

72543041 is a deficient number, since it is larger than the sum of its proper divisors (77551).

72543041 is an equidigital number, since it uses as much as digits as its factorization.

72543041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77550.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 72543041 is about 8517.2202625035. The cubic root of 72543041 is about 417.0600449893.

Adding to 72543041 its reverse (14034527), we get a palindrome (86577568).

The spelling of 72543041 in words is "seventy-two million, five hundred forty-three thousand, forty-one".