72536241 has 4 divisors (see below), whose sum is σ = 96714992. Its totient is φ = 48357492.

The previous prime is 72536213. The next prime is 72536251. The reversal of 72536241 is 14263527.

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 not a de Polignac number, because 72536241 - 2⁵ = 72536209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72536199 and 72536208.

It is not an unprimeable number, because it can be changed into a prime (72536251) 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, 12089371 + ... + 12089376.

It is an arithmetic number, because the mean of its divisors is an integer number (24178748).

Almost surely, 2^72536241 is an apocalyptic number.

It is an amenable number.

72536241 is a deficient number, since it is larger than the sum of its proper divisors (24178751).

72536241 is a wasteful number, since it uses less digits than its factorization.

72536241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24178750.

The product of its digits is 10080, while the sum is 30.

The square root of 72536241 is about 8516.8210618751. The cubic root of 72536241 is about 417.0470131998.

Adding to 72536241 its reverse (14263527), we get a palindrome (86799768).

The spelling of 72536241 in words is "seventy-two million, five hundred thirty-six thousand, two hundred forty-one".