168538041 has 24 divisors (see below), whose sum is σ = 287199744. Its totient is φ = 93199680.

The previous prime is 168538009. The next prime is 168538061. The reversal of 168538041 is 140835861.

It is not a de Polignac number, because 168538041 - 2⁵ = 168538009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 168537987 and 168538005.

It is not an unprimeable number, because it can be changed into a prime (168538061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41196 + ... + 45101.

It is an arithmetic number, because the mean of its divisors is an integer number (11966656).

Almost surely, 2^168538041 is an apocalyptic number.

It is an amenable number.

168538041 is a deficient number, since it is larger than the sum of its proper divisors (118661703).

168538041 is a wasteful number, since it uses less digits than its factorization.

168538041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86341 (or 86338 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 168538041 is about 12982.2201876258. The cubic root of 168538041 is about 552.3732608564.

The spelling of 168538041 in words is "one hundred sixty-eight million, five hundred thirty-eight thousand, forty-one".