72266179 has 2 divisors, whose sum is σ = 72266180. Its totient is φ = 72266178.

The previous prime is 72266171. The next prime is 72266197. The reversal of 72266179 is 97166227.

Together with next prime (72266197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (97166227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72266179 - 2³ = 72266171 is a prime.

It is not a weakly prime, because it can be changed into another prime (72266171) 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 as a sum of consecutive naturals, namely, 36133089 + 36133090.

It is an arithmetic number, because the mean of its divisors is an integer number (36133090).

Almost surely, 2^72266179 is an apocalyptic number.

72266179 is a deficient number, since it is larger than the sum of its proper divisors (1).

72266179 is an equidigital number, since it uses as much as digits as its factorization.

72266179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 72266179 is about 8500.9516526093. The cubic root of 72266179 is about 416.5287958427.

The spelling of 72266179 in words is "seventy-two million, two hundred sixty-six thousand, one hundred seventy-nine".