501142322 has 4 divisors (see below), whose sum is σ = 751713486. Its totient is φ = 250571160.

The previous prime is 501142321. The next prime is 501142349. The reversal of 501142322 is 223241105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 493683961 + 7458361 = 22219^2 + 2731^2 .

It is a super-2 number, since 2×501142322² = 502287253799103368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 501142294 and 501142303.

It is not an unprimeable number, because it can be changed into a prime (501142321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125285579 + ... + 125285582.

Almost surely, 2^501142322 is an apocalyptic number.

501142322 is a deficient number, since it is larger than the sum of its proper divisors (250571164).

501142322 is a wasteful number, since it uses less digits than its factorization.

501142322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250571163.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 501142322 is about 22386.2082988612. The cubic root of 501142322 is about 794.3045073048.

Adding to 501142322 its reverse (223241105), we get a palindrome (724383427).

The spelling of 501142322 in words is "five hundred one million, one hundred forty-two thousand, three hundred twenty-two".