501109 has 8 divisors (see below), whose sum is σ = 606528. Its totient is φ = 404160.

The previous prime is 501103. The next prime is 501121. The reversal of 501109 is 901105.

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 501109 - 2⁵ = 501077 is a prime.

It is a super-2 number, since 2×501109² = 502220459762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501092 and 501101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1987 + ... + 2224.

It is an arithmetic number, because the mean of its divisors is an integer number (75816).

2⁵⁰¹¹⁰⁹ is an apocalyptic number.

It is an amenable number.

501109 is a deficient number, since it is larger than the sum of its proper divisors (105419).

501109 is a wasteful number, since it uses less digits than its factorization.

501109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 501109 is about 707.8905282598. The cubic root of 501109 is about 79.4286901926.

The spelling of 501109 in words is "five hundred one thousand, one hundred nine".