163351423 has 2 divisors, whose sum is σ = 163351424. Its totient is φ = 163351422.

The previous prime is 163351393. The next prime is 163351429. The reversal of 163351423 is 324153361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163351423 - 2⁹ = 163350911 is a prime.

It is a super-2 number, since 2×163351423² = 53367374792249858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163351391 and 163351400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163351429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81675711 + 81675712.

It is an arithmetic number, because the mean of its divisors is an integer number (81675712).

Almost surely, 2^163351423 is an apocalyptic number.

163351423 is a deficient number, since it is larger than the sum of its proper divisors (1).

163351423 is an equidigital number, since it uses as much as digits as its factorization.

163351423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 163351423 is about 12780.9007116087. The cubic root of 163351423 is about 546.6478454175.

The spelling of 163351423 in words is "one hundred sixty-three million, three hundred fifty-one thousand, four hundred twenty-three".