72247183 has 2 divisors, whose sum is σ = 72247184. Its totient is φ = 72247182.

The previous prime is 72247171. The next prime is 72247247. The reversal of 72247183 is 38174227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72247183 - 2²⁵ = 38692751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72247103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36123591 + 36123592.

It is an arithmetic number, because the mean of its divisors is an integer number (36123592).

Almost surely, 2^72247183 is an apocalyptic number.

72247183 is a deficient number, since it is larger than the sum of its proper divisors (1).

72247183 is an equidigital number, since it uses as much as digits as its factorization.

72247183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 72247183 is about 8499.8342925024. The cubic root of 72247183 is about 416.4922961758.

The spelling of 72247183 in words is "seventy-two million, two hundred forty-seven thousand, one hundred eighty-three".