20340179 has 2 divisors, whose sum is σ = 20340180. Its totient is φ = 20340178.

The previous prime is 20340167. The next prime is 20340197. The reversal of 20340179 is 97104302.

Together with next prime (20340197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20340179 - 2¹² = 20336083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20340679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10170089 + 10170090.

It is an arithmetic number, because the mean of its divisors is an integer number (10170090).

Almost surely, 2^20340179 is an apocalyptic number.

20340179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20340179 is an equidigital number, since it uses as much as digits as its factorization.

20340179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20340179 is about 4510.0087583064. The cubic root of 20340179 is about 272.9720974940.

The spelling of 20340179 in words is "twenty million, three hundred forty thousand, one hundred seventy-nine".