163453403 has 2 divisors, whose sum is σ = 163453404. Its totient is φ = 163453402.

The previous prime is 163453399. The next prime is 163453417. The reversal of 163453403 is 304354361.

It is a weak prime.

It is an emirp because it is prime and its reverse (304354361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163453403 - 2² = 163453399 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_9157205 and since 163453403 and 9157205 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (163453463) 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, 81726701 + 81726702.

It is an arithmetic number, because the mean of its divisors is an integer number (81726702).

Almost surely, 2^163453403 is an apocalyptic number.

163453403 is a deficient number, since it is larger than the sum of its proper divisors (1).

163453403 is an equidigital number, since it uses as much as digits as its factorization.

163453403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 163453403 is about 12784.8896358162. The cubic root of 163453403 is about 546.7615788423.

The spelling of 163453403 in words is "one hundred sixty-three million, four hundred fifty-three thousand, four hundred three".