501142 has 8 divisors (see below), whose sum is σ = 758016. Its totient is φ = 248472.

The previous prime is 501139. The next prime is 501157. The reversal of 501142 is 241105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×501142² = 502286608328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 733 + ... + 1240.

It is an arithmetic number, because the mean of its divisors is an integer number (94752).

2⁵⁰¹¹⁴² is an apocalyptic number.

501142 is a deficient number, since it is larger than the sum of its proper divisors (256874).

501142 is a wasteful number, since it uses less digits than its factorization.

501142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 501142 is about 707.9138365649. The cubic root of 501142 is about 79.4304337183.

Adding to 501142 its reverse (241105), we get a palindrome (742247).

The spelling of 501142 in words is "five hundred one thousand, one hundred forty-two".