163099427 has 2 divisors, whose sum is σ = 163099428. Its totient is φ = 163099426.

The previous prime is 163099397. The next prime is 163099471. The reversal of 163099427 is 724990361.

163099427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163099427 - 2⁸ = 163099171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163099487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81549713 + 81549714.

It is an arithmetic number, because the mean of its divisors is an integer number (81549714).

Almost surely, 2^163099427 is an apocalyptic number.

163099427 is a deficient number, since it is larger than the sum of its proper divisors (1).

163099427 is an equidigital number, since it uses as much as digits as its factorization.

163099427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 163099427 is about 12771.0386030268. The cubic root of 163099427 is about 546.3666031645.

The spelling of 163099427 in words is "one hundred sixty-three million, ninety-nine thousand, four hundred twenty-seven".