427540163 has 2 divisors, whose sum is σ = 427540164. Its totient is φ = 427540162.

The previous prime is 427540151. The next prime is 427540177. The reversal of 427540163 is 361045724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427540163 is a prime.

It is not a weakly prime, because it can be changed into another prime (427540103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213770081 + 213770082.

It is an arithmetic number, because the mean of its divisors is an integer number (213770082).

Almost surely, 2^427540163 is an apocalyptic number.

427540163 is a deficient number, since it is larger than the sum of its proper divisors (1).

427540163 is an equidigital number, since it uses as much as digits as its factorization.

427540163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 427540163 is about 20677.0443487458. The cubic root of 427540163 is about 753.3422176144.

Adding to 427540163 its reverse (361045724), we get a palindrome (788585887).

The spelling of 427540163 in words is "four hundred twenty-seven million, five hundred forty thousand, one hundred sixty-three".