162843121 has 9 divisors (see below), whose sum is σ = 189533721. Its totient is φ = 139503252.

The previous prime is 162843113. The next prime is 162843169. The reversal of 162843121 is 121348261.

The square root of 162843121 is 12761.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 162843121 - 2³ = 162843113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162843121.

It is not an unprimeable number, because it can be changed into a prime (162843101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 88416 + ... + 90238.

Almost surely, 2^162843121 is an apocalyptic number.

162843121 is the 12761-st square number.

162843121 is the 6381-st centered octagonal number.

It is an amenable number.

162843121 is a deficient number, since it is larger than the sum of its proper divisors (26690600).

162843121 is an frugal number, since it uses more digits than its factorization.

162843121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660 (or 1830 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The cubic root of 162843121 is about 546.0802533799.

Multiplying 162843121 by its product of digits (2304), we get a square (375190550784 = 612528²).

The spelling of 162843121 in words is "one hundred sixty-two million, eight hundred forty-three thousand, one hundred twenty-one".