501361 has 8 divisors (see below), whose sum is σ = 582080. Its totient is φ = 422928.

The previous prime is 501343. The next prime is 501367. The reversal of 501361 is 163105.

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 501361 - 2⁷ = 501233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 1003.

It is an arithmetic number, because the mean of its divisors is an integer number (72760).

2⁵⁰¹³⁶¹ is an apocalyptic number.

It is an amenable number.

501361 is a deficient number, since it is larger than the sum of its proper divisors (80719).

501361 is a wasteful number, since it uses less digits than its factorization.

501361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 501361 is about 708.0684995112. The cubic root of 501361 is about 79.4420024497.

Adding to 501361 its reverse (163105), we get a palindrome (664466).

The spelling of 501361 in words is "five hundred one thousand, three hundred sixty-one".