164727239 has 2 divisors, whose sum is σ = 164727240. Its totient is φ = 164727238.

The previous prime is 164727203. The next prime is 164727247. The reversal of 164727239 is 932727461.

164727239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164727239 - 2⁸ = 164726983 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 164727196 and 164727205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164727139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82363619 + 82363620.

It is an arithmetic number, because the mean of its divisors is an integer number (82363620).

Almost surely, 2^164727239 is an apocalyptic number.

164727239 is a deficient number, since it is larger than the sum of its proper divisors (1).

164727239 is an equidigital number, since it uses as much as digits as its factorization.

164727239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 41.

The square root of 164727239 is about 12834.6109796908. The cubic root of 164727239 is about 548.1782579816.

The spelling of 164727239 in words is "one hundred sixty-four million, seven hundred twenty-seven thousand, two hundred thirty-nine".