72234539 has 8 divisors (see below), whose sum is σ = 79600752. Its totient is φ = 65126880.

The previous prime is 72234527. The next prime is 72234571. The reversal of 72234539 is 93543227.

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

It is not a de Polignac number, because 72234539 - 2¹⁶ = 72169003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72234499 and 72234508.

It is not an unprimeable number, because it can be changed into a prime (72230539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64052 + ... + 65169.

It is an arithmetic number, because the mean of its divisors is an integer number (9950094).

Almost surely, 2^72234539 is an apocalyptic number.

72234539 is a deficient number, since it is larger than the sum of its proper divisors (7366213).

72234539 is a wasteful number, since it uses less digits than its factorization.

72234539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129277.

The product of its digits is 45360, while the sum is 35.

The square root of 72234539 is about 8499.0904807515. The cubic root of 72234539 is about 416.4679979466.

The spelling of 72234539 in words is "seventy-two million, two hundred thirty-four thousand, five hundred thirty-nine".