162446143 has 4 divisors (see below), whose sum is σ = 170995960. Its totient is φ = 153896328.

The previous prime is 162446129. The next prime is 162446159. The reversal of 162446143 is 341644261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 162446143 - 2⁹ = 162445631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162440143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4274880 + ... + 4274917.

It is an arithmetic number, because the mean of its divisors is an integer number (42748990).

Almost surely, 2^162446143 is an apocalyptic number.

162446143 is a deficient number, since it is larger than the sum of its proper divisors (8549817).

162446143 is an equidigital number, since it uses as much as digits as its factorization.

162446143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8549816.

The product of its digits is 13824, while the sum is 31.

The square root of 162446143 is about 12745.4361635842. The cubic root of 162446143 is about 545.6361485650.

The spelling of 162446143 in words is "one hundred sixty-two million, four hundred forty-six thousand, one hundred forty-three".