163840041 has 6 divisors (see below), whose sum is σ = 236657850. Its totient is φ = 109226688.

The previous prime is 163840007. The next prime is 163840043. The reversal of 163840041 is 140048361.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 63920025 = 9996^2 + 7995^2 .

It is not a de Polignac number, because 163840041 - 2²⁵ = 130285609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163839987 and 163840014.

It is not an unprimeable number, because it can be changed into a prime (163840043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9102216 + ... + 9102233.

It is an arithmetic number, because the mean of its divisors is an integer number (39442975).

Almost surely, 2^163840041 is an apocalyptic number.

It is an amenable number.

163840041 is a deficient number, since it is larger than the sum of its proper divisors (72817809).

163840041 is a wasteful number, since it uses less digits than its factorization.

163840041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18204455 (or 18204452 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 163840041 is about 12800.0016015624. The cubic root of 163840041 is about 547.1923485804.

The spelling of 163840041 in words is "one hundred sixty-three million, eight hundred forty thousand, forty-one".