72044111 has 4 divisors (see below), whose sum is σ = 73225224. Its totient is φ = 70863000.

The previous prime is 72044101. The next prime is 72044153. The reversal of 72044111 is 11144027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11144027 = 17 ⋅655531.

It is a cyclic number.

It is not a de Polignac number, because 72044111 - 2⁶ = 72044047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72044101) 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, 590465 + ... + 590586.

It is an arithmetic number, because the mean of its divisors is an integer number (18306306).

Almost surely, 2^72044111 is an apocalyptic number.

72044111 is a deficient number, since it is larger than the sum of its proper divisors (1181113).

72044111 is a wasteful number, since it uses less digits than its factorization.

72044111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181112.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 72044111 is about 8487.8802418507. The cubic root of 72044111 is about 416.1017052085.

Adding to 72044111 its reverse (11144027), we get a palindrome (83188138).

The spelling of 72044111 in words is "seventy-two million, forty-four thousand, one hundred eleven".