163430417 has 2 divisors, whose sum is σ = 163430418. Its totient is φ = 163430416.

The previous prime is 163430389. The next prime is 163430447. The reversal of 163430417 is 714034361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135117376 + 28313041 = 11624^2 + 5321^2 .

It is an emirp because it is prime and its reverse (714034361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163430417 - 2²⁶ = 96321553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163430417.

It is not a weakly prime, because it can be changed into another prime (163430447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81715208 + 81715209.

It is an arithmetic number, because the mean of its divisors is an integer number (81715209).

Almost surely, 2^163430417 is an apocalyptic number.

It is an amenable number.

163430417 is a deficient number, since it is larger than the sum of its proper divisors (1).

163430417 is an equidigital number, since it uses as much as digits as its factorization.

163430417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 163430417 is about 12783.9906523746. The cubic root of 163430417 is about 546.7359477846.

Adding to 163430417 its reverse (714034361), we get a palindrome (877464778).

The spelling of 163430417 in words is "one hundred sixty-three million, four hundred thirty thousand, four hundred seventeen".