501122140 has 12 divisors (see below), whose sum is σ = 1052356536. Its totient is φ = 200448848.

The previous prime is 501122123. The next prime is 501122173. The reversal of 501122140 is 41221105.

It is a super-2 number, since 2×501122140² = 502246798396359200, 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, 12528034 + ... + 12528073.

It is an arithmetic number, because the mean of its divisors is an integer number (87696378).

Almost surely, 2^501122140 is an apocalyptic number.

It is an amenable number.

501122140 is an abundant number, since it is smaller than the sum of its proper divisors (551234396).

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

501122140 is a wasteful number, since it uses less digits than its factorization.

501122140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25056116 (or 25056114 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 501122140 is about 22385.7575257126. The cubic root of 501122140 is about 794.2938444198.

Adding to 501122140 its reverse (41221105), we get a palindrome (542343245).

The spelling of 501122140 in words is "five hundred one million, one hundred twenty-two thousand, one hundred forty".