162823189 has 2 divisors, whose sum is σ = 162823190. Its totient is φ = 162823188.

The previous prime is 162823151. The next prime is 162823223. The reversal of 162823189 is 981328261.

162823189 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., 149646289 + 13176900 = 12233^2 + 3630^2 .

It is a cyclic number.

It is not a de Polignac number, because 162823189 - 2¹³ = 162814997 is a prime.

It is a super-2 number, since 2×162823189² = 53022781752259442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162823109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81411594 + 81411595.

It is an arithmetic number, because the mean of its divisors is an integer number (81411595).

Almost surely, 2^162823189 is an apocalyptic number.

It is an amenable number.

162823189 is a deficient number, since it is larger than the sum of its proper divisors (1).

162823189 is an equidigital number, since it uses as much as digits as its factorization.

162823189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 40.

The square root of 162823189 is about 12760.2190028228. The cubic root of 162823189 is about 546.0579723942.

The spelling of 162823189 in words is "one hundred sixty-two million, eight hundred twenty-three thousand, one hundred eighty-nine".