162144231 has 8 divisors (see below), whose sum is σ = 216275184. Its totient is φ = 108054720.

The previous prime is 162144197. The next prime is 162144239. The reversal of 162144231 is 132441261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162144231 - 2¹⁵ = 162111463 is a prime.

It is a super-2 number, since 2×162144231² = 52581503293162722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162144239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (27034398).

Almost surely, 2^162144231 is an apocalyptic number.

162144231 is a deficient number, since it is larger than the sum of its proper divisors (54130953).

162144231 is a wasteful number, since it uses less digits than its factorization.

162144231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20721.

The product of its digits is 1152, while the sum is 24.

The square root of 162144231 is about 12733.5867295904. The cubic root of 162144231 is about 545.2979107998.

Adding to 162144231 its reverse (132441261), we get a palindrome (294585492).

The spelling of 162144231 in words is "one hundred sixty-two million, one hundred forty-four thousand, two hundred thirty-one".