160531211 has 4 divisors (see below), whose sum is σ = 166066800. Its totient is φ = 154995624.

The previous prime is 160531201. The next prime is 160531243. The reversal of 160531211 is 112135061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112135061 = 7103 ⋅15787.

It is a cyclic number.

It is not a de Polignac number, because 160531211 - 2²⁶ = 93422347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160531201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2767751 + ... + 2767808.

It is an arithmetic number, because the mean of its divisors is an integer number (41516700).

Almost surely, 2^160531211 is an apocalyptic number.

160531211 is a deficient number, since it is larger than the sum of its proper divisors (5535589).

160531211 is an equidigital number, since it uses as much as digits as its factorization.

160531211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535588.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 160531211 is about 12670.0911993561. The cubic root of 160531211 is about 543.4836631799.

Adding to 160531211 its reverse (112135061), we get a palindrome (272666272).

The spelling of 160531211 in words is "one hundred sixty million, five hundred thirty-one thousand, two hundred eleven".