72124106 has 8 divisors (see below), whose sum is σ = 108268644. Its totient is φ = 36034560.

The previous prime is 72124069. The next prime is 72124109. The reversal of 72124106 is 60142127.

It can be written as a sum of positive squares in 2 ways, for example, as 71995225 + 128881 = 8485^2 + 359^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72124109) 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 3 ways as a sum of consecutive naturals, for example, 10295 + ... + 15818.

Almost surely, 2^72124106 is an apocalyptic number.

72124106 is a deficient number, since it is larger than the sum of its proper divisors (36144538).

72124106 is a wasteful number, since it uses less digits than its factorization.

72124106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27496.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 72124106 is about 8492.5912417825. The cubic root of 72124106 is about 416.2556559996.

The spelling of 72124106 in words is "seventy-two million, one hundred twenty-four thousand, one hundred six".