501233142 has 8 divisors (see below), whose sum is σ = 1002466296. Its totient is φ = 167077712.

The previous prime is 501233119. The next prime is 501233147. The reversal of 501233142 is 241332105.

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

501233142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501233147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41769423 + ... + 41769434.

It is an arithmetic number, because the mean of its divisors is an integer number (125308287).

Almost surely, 2^501233142 is an apocalyptic number.

501233142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

501233142 is a wasteful number, since it uses less digits than its factorization.

501233142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83538862.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 501233142 is about 22388.2366880467. The cubic root of 501233142 is about 794.3524872729.

Adding to 501233142 its reverse (241332105), we get a palindrome (742565247).

The spelling of 501233142 in words is "five hundred one million, two hundred thirty-three thousand, one hundred forty-two".