72012106 has 8 divisors (see below), whose sum is σ = 108055044. Its totient is φ = 35993760.

The previous prime is 72012097. The next prime is 72012137. The reversal of 72012106 is 60121027.

It can be written as a sum of positive squares in 2 ways, for example, as 64144081 + 7868025 = 8009^2 + 2805^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 5886 + ... + 13366.

Almost surely, 2^72012106 is an apocalyptic number.

72012106 is a deficient number, since it is larger than the sum of its proper divisors (36042938).

72012106 is a wasteful number, since it uses less digits than its factorization.

72012106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12296.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 72012106 is about 8485.9946971466. The cubic root of 72012106 is about 416.0400795026.

The spelling of 72012106 in words is "seventy-two million, twelve thousand, one hundred six".