162105489 has 64 divisors (see below), whose sum is σ = 313044480. Its totient is φ = 80455680.

The previous prime is 162105469. The next prime is 162105497. The reversal of 162105489 is 984501261.

162105489 is a `hidden beast` number, since 162 + 10 + 5 + 489 = 666.

It is not a de Polignac number, because 162105489 - 2⁵ = 162105457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162105409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39829 + ... + 43709.

It is an arithmetic number, because the mean of its divisors is an integer number (4891320).

Almost surely, 2^162105489 is an apocalyptic number.

It is an amenable number.

162105489 is a deficient number, since it is larger than the sum of its proper divisors (150938991).

162105489 is a wasteful number, since it uses less digits than its factorization.

162105489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927 (or 3921 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 162105489 is about 12732.0653862600. The cubic root of 162105489 is about 545.2544770118.

The spelling of 162105489 in words is "one hundred sixty-two million, one hundred five thousand, four hundred eighty-nine".