501542 has 8 divisors (see below), whose sum is σ = 764832. Its totient is φ = 246600.

The previous prime is 501511. The next prime is 501563. The reversal of 501542 is 245105.

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

It is a self number, because there is not a number n which added to its sum of digits gives 501542.

It is a congruent number.

It is an unprimeable number.

501542 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 1934 + ... + 2177.

It is an arithmetic number, because the mean of its divisors is an integer number (95604).

2⁵⁰¹⁵⁴² is an apocalyptic number.

501542 is a deficient number, since it is larger than the sum of its proper divisors (263290).

501542 is a wasteful number, since it uses less digits than its factorization.

501542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 501542 is about 708.1963004704. The cubic root of 501542 is about 79.4515612789.

Adding to 501542 its reverse (245105), we get a palindrome (746647).

The spelling of 501542 in words is "five hundred one thousand, five hundred forty-two".