501140 has 12 divisors (see below), whose sum is σ = 1052436. Its totient is φ = 200448.

The previous prime is 501139. The next prime is 501157. The reversal of 501140 is 41105.

It can be written as a sum of positive squares in 2 ways, for example, as 145924 + 355216 = 382^2 + 596^2 .

It is a super-2 number, since 2×501140² = 502282599200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12509 + ... + 12548.

It is an arithmetic number, because the mean of its divisors is an integer number (87703).

2⁵⁰¹¹⁴⁰ is an apocalyptic number.

It is an amenable number.

501140 is an abundant number, since it is smaller than the sum of its proper divisors (551296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501140 is a wasteful number, since it uses less digits than its factorization.

501140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25066 (or 25064 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 501140 is about 707.9124239622. The cubic root of 501140 is about 79.4303280522.

Adding to 501140 its reverse (41105), we get a palindrome (542245).

The spelling of 501140 in words is "five hundred one thousand, one hundred forty".