163313429 has 2 divisors, whose sum is σ = 163313430. Its totient is φ = 163313428.

The previous prime is 163313393. The next prime is 163313443. The reversal of 163313429 is 924313361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145757329 + 17556100 = 12073^2 + 4190^2 .

It is an emirp because it is prime and its reverse (924313361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163313429 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 163313395 and 163313404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163313459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81656714 + 81656715.

It is an arithmetic number, because the mean of its divisors is an integer number (81656715).

Almost surely, 2^163313429 is an apocalyptic number.

It is an amenable number.

163313429 is a deficient number, since it is larger than the sum of its proper divisors (1).

163313429 is an equidigital number, since it uses as much as digits as its factorization.

163313429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 32.

The square root of 163313429 is about 12779.4142667025. The cubic root of 163313429 is about 546.6054604206.

The spelling of 163313429 in words is "one hundred sixty-three million, three hundred thirteen thousand, four hundred twenty-nine".