20601179 has 2 divisors, whose sum is σ = 20601180. Its totient is φ = 20601178.

The previous prime is 20601173. The next prime is 20601197. The reversal of 20601179 is 97110602.

Together with next prime (20601197) 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 a de Polignac number, because none of the positive numbers 2^k-20601179 is a prime.

It is not a weakly prime, because it can be changed into another prime (20601173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300589 + 10300590.

It is an arithmetic number, because the mean of its divisors is an integer number (10300590).

Almost surely, 2^20601179 is an apocalyptic number.

20601179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601179 is an equidigital number, since it uses as much as digits as its factorization.

20601179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 20601179 is about 4538.8521676741. The cubic root of 20601179 is about 274.1347083013.

The spelling of 20601179 in words is "twenty million, six hundred one thousand, one hundred seventy-nine".