72183845 has 8 divisors (see below), whose sum is σ = 88089120. Its totient is φ = 56768080.

The previous prime is 72183829. The next prime is 72183851. The reversal of 72183845 is 54838127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72183845 - 2⁴ = 72183829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72183799 and 72183808.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 122051 + ... + 122640.

It is an arithmetic number, because the mean of its divisors is an integer number (11011140).

Almost surely, 2^72183845 is an apocalyptic number.

It is an amenable number.

72183845 is a deficient number, since it is larger than the sum of its proper divisors (15905275).

72183845 is a wasteful number, since it uses less digits than its factorization.

72183845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244755.

The product of its digits is 53760, while the sum is 38.

The square root of 72183845 is about 8496.1076382070. The cubic root of 72183845 is about 416.3705497831.

The spelling of 72183845 in words is "seventy-two million, one hundred eighty-three thousand, eight hundred forty-five".