163428319 has 2 divisors, whose sum is σ = 163428320. Its totient is φ = 163428318.

The previous prime is 163428283. The next prime is 163428389. The reversal of 163428319 is 913824361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163428319 - 2¹¹ = 163426271 is a prime.

It is a super-2 number, since 2×163428319² = 53417630902331522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163428389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81714159 + 81714160.

It is an arithmetic number, because the mean of its divisors is an integer number (81714160).

Almost surely, 2^163428319 is an apocalyptic number.

163428319 is a deficient number, since it is larger than the sum of its proper divisors (1).

163428319 is an equidigital number, since it uses as much as digits as its factorization.

163428319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 163428319 is about 12783.9085963566. The cubic root of 163428319 is about 546.7336082427.

The spelling of 163428319 in words is "one hundred sixty-three million, four hundred twenty-eight thousand, three hundred nineteen".