501941 has 4 divisors (see below), whose sum is σ = 547584. Its totient is φ = 456300.

The previous prime is 501931. The next prime is 501947. The reversal of 501941 is 149105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501947) 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 3 ways as a sum of consecutive naturals, for example, 22805 + ... + 22826.

It is an arithmetic number, because the mean of its divisors is an integer number (136896).

2⁵⁰¹⁹⁴¹ is an apocalyptic number.

It is an amenable number.

501941 is a deficient number, since it is larger than the sum of its proper divisors (45643).

501941 is a wasteful number, since it uses less digits than its factorization.

501941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45642.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 501941 is about 708.4779460223. The cubic root of 501941 is about 79.4726248323.

Subtracting from 501941 its reverse (149105), we obtain a square (352836 = 594²).

It can be divided in two parts, 50 and 1941, that added together give a palindrome (1991).

The spelling of 501941 in words is "five hundred one thousand, nine hundred forty-one".