72081167 has 2 divisors, whose sum is σ = 72081168. Its totient is φ = 72081166.

The previous prime is 72081161. The next prime is 72081179. The reversal of 72081167 is 76118027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72081167 - 2¹⁰ = 72080143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72081161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36040583 + 36040584.

It is an arithmetic number, because the mean of its divisors is an integer number (36040584).

Almost surely, 2^72081167 is an apocalyptic number.

72081167 is a deficient number, since it is larger than the sum of its proper divisors (1).

72081167 is an equidigital number, since it uses as much as digits as its factorization.

72081167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 72081167 is about 8490.0628384011. The cubic root of 72081167 is about 416.1730338326.

The spelling of 72081167 in words is "seventy-two million, eighty-one thousand, one hundred sixty-seven".