162989443 has 2 divisors, whose sum is σ = 162989444. Its totient is φ = 162989442.

The previous prime is 162989441. The next prime is 162989459. The reversal of 162989443 is 344989261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162989443 - 2¹ = 162989441 is a prime.

Together with 162989441, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 162989393 and 162989402.

It is not a weakly prime, because it can be changed into another prime (162989441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81494721 + 81494722.

It is an arithmetic number, because the mean of its divisors is an integer number (81494722).

Almost surely, 2^162989443 is an apocalyptic number.

162989443 is a deficient number, since it is larger than the sum of its proper divisors (1).

162989443 is an equidigital number, since it uses as much as digits as its factorization.

162989443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 162989443 is about 12766.7318840806. The cubic root of 162989443 is about 546.2437637858.

The spelling of 162989443 in words is "one hundred sixty-two million, nine hundred eighty-nine thousand, four hundred forty-three".