72081163 has 8 divisors (see below), whose sum is σ = 89867520. Its totient is φ = 56167080.

The previous prime is 72081161. The next prime is 72081167. The reversal of 72081163 is 36118027.

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

It is a cyclic number.

It is not a de Polignac number, because 72081163 - 2¹ = 72081161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72081161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467983 + ... + 468136.

It is an arithmetic number, because the mean of its divisors is an integer number (11233440).

Almost surely, 2^72081163 is an apocalyptic number.

72081163 is a deficient number, since it is larger than the sum of its proper divisors (17786357).

72081163 is a wasteful number, since it uses less digits than its factorization.

72081163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936137.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 72081163 is about 8490.0626028316. The cubic root of 72081163 is about 416.1730261344.

The spelling of 72081163 in words is "seventy-two million, eighty-one thousand, one hundred sixty-three".