508161 has 8 divisors (see below), whose sum is σ = 684000. Its totient is φ = 335552.

The previous prime is 508159. The next prime is 508171. The reversal of 508161 is 161805.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 508161 - 2¹ = 508159 is a prime.

508161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (508171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411 + ... + 1088.

It is an arithmetic number, because the mean of its divisors is an integer number (85500).

2⁵⁰⁸¹⁶¹ is an apocalyptic number.

It is an amenable number.

508161 is a deficient number, since it is larger than the sum of its proper divisors (175839).

508161 is a wasteful number, since it uses less digits than its factorization.

508161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 508161 is about 712.8541225244. The cubic root of 508161 is about 79.7995502515.

Adding to 508161 its reverse (161805), we get a palindrome (669966).

The spelling of 508161 in words is "five hundred eight thousand, one hundred sixty-one".