162128254243 has 2 divisors, whose sum is σ = 162128254244. Its totient is φ = 162128254242.

The previous prime is 162128254241. The next prime is 162128254283. The reversal of 162128254243 is 342452821261.

It is an a-pointer prime, because the next prime (162128254283) can be obtained adding 162128254243 to its sum of digits (40).

It is a weak prime.

It is an emirp because it is prime and its reverse (342452821261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162128254243 - 2¹ = 162128254241 is a prime.

Together with 162128254241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 162128254196 and 162128254205.

It is not a weakly prime, because it can be changed into another prime (162128254241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81064127121 + 81064127122.

It is an arithmetic number, because the mean of its divisors is an integer number (81064127122).

Almost surely, 2^162128254243 is an apocalyptic number.

162128254243 is a deficient number, since it is larger than the sum of its proper divisors (1).

162128254243 is an equidigital number, since it uses as much as digits as its factorization.

162128254243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 40.

The spelling of 162128254243 in words is "one hundred sixty-two billion, one hundred twenty-eight million, two hundred fifty-four thousand, two hundred forty-three".