163719223 has 2 divisors, whose sum is σ = 163719224. Its totient is φ = 163719222.

The previous prime is 163719209. The next prime is 163719233. The reversal of 163719223 is 322917361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163719223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163719233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81859611 + 81859612.

It is an arithmetic number, because the mean of its divisors is an integer number (81859612).

Almost surely, 2^163719223 is an apocalyptic number.

163719223 is a deficient number, since it is larger than the sum of its proper divisors (1).

163719223 is an equidigital number, since it uses as much as digits as its factorization.

163719223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 163719223 is about 12795.2812786589. The cubic root of 163719223 is about 547.0578130059.

The spelling of 163719223 in words is "one hundred sixty-three million, seven hundred nineteen thousand, two hundred twenty-three".