162448789 has 2 divisors, whose sum is σ = 162448790. Its totient is φ = 162448788.

The previous prime is 162448751. The next prime is 162448799. The reversal of 162448789 is 987844261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159592689 + 2856100 = 12633^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 162448789 - 2²¹ = 160351637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162448729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81224394 + 81224395.

It is an arithmetic number, because the mean of its divisors is an integer number (81224395).

Almost surely, 2^162448789 is an apocalyptic number.

It is an amenable number.

162448789 is a deficient number, since it is larger than the sum of its proper divisors (1).

162448789 is an equidigital number, since it uses as much as digits as its factorization.

162448789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 162448789 is about 12745.5399650231. The cubic root of 162448789 is about 545.6391110759.

The spelling of 162448789 in words is "one hundred sixty-two million, four hundred forty-eight thousand, seven hundred eighty-nine".