72118343 has 16 divisors (see below), whose sum is σ = 80196480. Its totient is φ = 64308000.

The previous prime is 72118339. The next prime is 72118349. The reversal of 72118343 is 34381127.

It is a cyclic number.

It is not a de Polignac number, because 72118343 - 2² = 72118339 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 (72118349) 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 15 ways as a sum of consecutive naturals, for example, 154196 + ... + 154662.

It is an arithmetic number, because the mean of its divisors is an integer number (5012280).

Almost surely, 2^72118343 is an apocalyptic number.

72118343 is a deficient number, since it is larger than the sum of its proper divisors (8078137).

72118343 is a wasteful number, since it uses less digits than its factorization.

72118343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718.

The product of its digits is 4032, while the sum is 29.

The square root of 72118343 is about 8492.2519392679. The cubic root of 72118343 is about 416.2445688825.

The spelling of 72118343 in words is "seventy-two million, one hundred eighteen thousand, three hundred forty-three".