163023893 has 2 divisors, whose sum is σ = 163023894. Its totient is φ = 163023892.

The previous prime is 163023853. The next prime is 163023901. The reversal of 163023893 is 398320361.

163023893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 2798929 = 12658^2 + 1673^2 .

It is an emirp because it is prime and its reverse (398320361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163023893 - 2²⁴ = 146246677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163023803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81511946 + 81511947.

It is an arithmetic number, because the mean of its divisors is an integer number (81511947).

Almost surely, 2^163023893 is an apocalyptic number.

It is an amenable number.

163023893 is a deficient number, since it is larger than the sum of its proper divisors (1).

163023893 is an equidigital number, since it uses as much as digits as its factorization.

163023893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 163023893 is about 12768.0810226126. The cubic root of 163023893 is about 546.2822463845.

The spelling of 163023893 in words is "one hundred sixty-three million, twenty-three thousand, eight hundred ninety-three".