160441921 has 4 divisors (see below), whose sum is σ = 160485844. Its totient is φ = 160398000.

The previous prime is 160441889. The next prime is 160441927. The reversal of 160441921 is 129144061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 129144061 = 3767 ⋅34283.

It can be written as a sum of positive squares in 2 ways, for example, as 8042896 + 152399025 = 2836^2 + 12345^2 .

It is a cyclic number.

It is not a de Polignac number, because 160441921 - 2⁵ = 160441889 is a prime.

It is a super-2 number, since 2×160441921² = 51483220028340482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160441921.

It is not an unprimeable number, because it can be changed into a prime (160441927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15930 + ... + 23971.

It is an arithmetic number, because the mean of its divisors is an integer number (40121461).

Almost surely, 2^160441921 is an apocalyptic number.

It is an amenable number.

160441921 is a deficient number, since it is larger than the sum of its proper divisors (43923).

160441921 is an equidigital number, since it uses as much as digits as its factorization.

160441921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43922.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 160441921 is about 12666.5670566259. The cubic root of 160441921 is about 543.3828797537.

Adding to 160441921 its reverse (129144061), we get a palindrome (289585982).

The spelling of 160441921 in words is "one hundred sixty million, four hundred forty-one thousand, nine hundred twenty-one".