20534179 has 2 divisors, whose sum is σ = 20534180. Its totient is φ = 20534178.

The previous prime is 20534167. The next prime is 20534207. The reversal of 20534179 is 97143502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20534179 - 2⁷ = 20534051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20534179.

It is not a weakly prime, because it can be changed into another prime (20534279) 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, 10267089 + 10267090.

It is an arithmetic number, because the mean of its divisors is an integer number (10267090).

Almost surely, 2^20534179 is an apocalyptic number.

20534179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20534179 is an equidigital number, since it uses as much as digits as its factorization.

20534179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20534179 is about 4531.4654362579. The cubic root of 20534179 is about 273.8372014961.

The spelling of 20534179 in words is "twenty million, five hundred thirty-four thousand, one hundred seventy-nine".