165430841 has 4 divisors (see below), whose sum is σ = 168142884. Its totient is φ = 162718800.

The previous prime is 165430831. The next prime is 165430843. The reversal of 165430841 is 148034561.

165430841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 148034561 = 4871 ⋅30391.

It can be written as a sum of positive squares in 2 ways, for example, as 77070841 + 88360000 = 8779^2 + 9400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165430841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165430798 and 165430807.

It is not an unprimeable number, because it can be changed into a prime (165430843) 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, 1355930 + ... + 1356051.

It is an arithmetic number, because the mean of its divisors is an integer number (42035721).

Almost surely, 2^165430841 is an apocalyptic number.

It is an amenable number.

165430841 is a deficient number, since it is larger than the sum of its proper divisors (2712043).

165430841 is an equidigital number, since it uses as much as digits as its factorization.

165430841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712042.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 165430841 is about 12861.9921085344. The cubic root of 165430841 is about 548.9576301377.

The spelling of 165430841 in words is "one hundred sixty-five million, four hundred thirty thousand, eight hundred forty-one".