162331321 has 8 divisors (see below), whose sum is σ = 170597504. Its totient is φ = 154269360.

The previous prime is 162331313. The next prime is 162331363. The reversal of 162331321 is 123133261.

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

It is a cyclic number.

It is not a de Polignac number, because 162331321 - 2³ = 162331313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162331292 and 162331301.

It is not an unprimeable number, because it can be changed into a prime (162331391) 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, 49425 + ... + 52606.

It is an arithmetic number, because the mean of its divisors is an integer number (21324688).

Almost surely, 2^162331321 is an apocalyptic number.

It is an amenable number.

162331321 is a deficient number, since it is larger than the sum of its proper divisors (8266183).

162331321 is a wasteful number, since it uses less digits than its factorization.

162331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102111.

The product of its digits is 648, while the sum is 22.

The square root of 162331321 is about 12740.9309314508. The cubic root of 162331321 is about 545.5075607149.

Adding to 162331321 its reverse (123133261), we get a palindrome (285464582).

The spelling of 162331321 in words is "one hundred sixty-two million, three hundred thirty-one thousand, three hundred twenty-one".