20124179 has 2 divisors, whose sum is σ = 20124180. Its totient is φ = 20124178.

The previous prime is 20124127. The next prime is 20124191. The reversal of 20124179 is 97142102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20124179 - 2⁸ = 20123923 is a prime.

It is not a weakly prime, because it can be changed into another prime (20124109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062089 + 10062090.

It is an arithmetic number, because the mean of its divisors is an integer number (10062090).

Almost surely, 2^20124179 is an apocalyptic number.

20124179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124179 is an equidigital number, since it uses as much as digits as its factorization.

20124179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 20124179 is about 4485.9981052158. The cubic root of 20124179 is about 272.0023923881.

The spelling of 20124179 in words is "twenty million, one hundred twenty-four thousand, one hundred seventy-nine".