180163427 has 2 divisors, whose sum is σ = 180163428. Its totient is φ = 180163426.

The previous prime is 180163367. The next prime is 180163447. The reversal of 180163427 is 724361081.

It is a strong prime.

It is an emirp because it is prime and its reverse (724361081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180163427 - 2¹⁰ = 180162403 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 180163393 and 180163402.

It is not a weakly prime, because it can be changed into another prime (180163447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90081713 + 90081714.

It is an arithmetic number, because the mean of its divisors is an integer number (90081714).

Almost surely, 2^180163427 is an apocalyptic number.

180163427 is a deficient number, since it is larger than the sum of its proper divisors (1).

180163427 is an equidigital number, since it uses as much as digits as its factorization.

180163427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 180163427 is about 13422.4970478671. The cubic root of 180163427 is about 564.7924441897.

The spelling of 180163427 in words is "one hundred eighty million, one hundred sixty-three thousand, four hundred twenty-seven".