163145459 has 2 divisors, whose sum is σ = 163145460. Its totient is φ = 163145458.

The previous prime is 163145449. The next prime is 163145461. The reversal of 163145459 is 954541361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163145459 is a prime.

Together with 163145461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163145429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81572729 + 81572730.

It is an arithmetic number, because the mean of its divisors is an integer number (81572730).

Almost surely, 2^163145459 is an apocalyptic number.

163145459 is a deficient number, since it is larger than the sum of its proper divisors (1).

163145459 is an equidigital number, since it uses as much as digits as its factorization.

163145459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 163145459 is about 12772.8406785648. The cubic root of 163145459 is about 546.4179991795.

The spelling of 163145459 in words is "one hundred sixty-three million, one hundred forty-five thousand, four hundred fifty-nine".