160216531 has 8 divisors (see below), whose sum is σ = 170960720. Its totient is φ = 149703552.

The previous prime is 160216519. The next prime is 160216591. The reversal of 160216531 is 135612061.

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 160216531 - 2⁹ = 160216019 is a prime.

It is a super-2 number, since 2×160216531² = 51338673611347922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 160216496 and 160216505.

It is not an unprimeable number, because it can be changed into a prime (160216591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56370 + ... + 59143.

It is an arithmetic number, because the mean of its divisors is an integer number (21370090).

Almost surely, 2^160216531 is an apocalyptic number.

160216531 is a deficient number, since it is larger than the sum of its proper divisors (10744189).

160216531 is a wasteful number, since it uses less digits than its factorization.

160216531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115605.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 160216531 is about 12657.6668861208. Note that the first 3 decimals coincide. The cubic root of 160216531 is about 543.1283110773.

Adding to 160216531 its reverse (135612061), we get a palindrome (295828592).

The spelling of 160216531 in words is "one hundred sixty million, two hundred sixteen thousand, five hundred thirty-one".