72345118 has 8 divisors (see below), whose sum is σ = 108635112. Its totient is φ = 36133416.

The previous prime is 72345113. The next prime is 72345181. The reversal of 72345118 is 81154327.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72345118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72345113) 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, 17205 + ... + 20992.

It is an arithmetic number, because the mean of its divisors is an integer number (13579389).

Almost surely, 2^72345118 is an apocalyptic number.

72345118 is a deficient number, since it is larger than the sum of its proper divisors (36289994).

72345118 is a wasteful number, since it uses less digits than its factorization.

72345118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39146.

The product of its digits is 6720, while the sum is 31.

The square root of 72345118 is about 8505.5933361524. The cubic root of 72345118 is about 416.6804038849.

The spelling of 72345118 in words is "seventy-two million, three hundred forty-five thousand, one hundred eighteen".