162539321 has 12 divisors (see below), whose sum is σ = 197298432. Its totient is φ = 133261128.

The previous prime is 162539303. The next prime is 162539323. The reversal of 162539321 is 123935261.

It is a de Polignac number, because none of the positive numbers 2^k-162539321 is a prime.

It is a super-2 number, since 2×162539321² = 52838061742282082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162539323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70985 + ... + 73238.

It is an arithmetic number, because the mean of its divisors is an integer number (16441536).

Almost surely, 2^162539321 is an apocalyptic number.

It is an amenable number.

162539321 is a deficient number, since it is larger than the sum of its proper divisors (34759111).

162539321 is a wasteful number, since it uses less digits than its factorization.

162539321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144260 (or 144253 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 162539321 is about 12749.0909872038. The cubic root of 162539321 is about 545.7404530163.

The spelling of 162539321 in words is "one hundred sixty-two million, five hundred thirty-nine thousand, three hundred twenty-one".