501122141 has 8 divisors (see below), whose sum is σ = 571415544. Its totient is φ = 435363840.

The previous prime is 501122123. The next prime is 501122173. The reversal of 501122141 is 141221105.

It can be written as a sum of positive squares in 4 ways, for example, as 302500 + 500819641 = 550^2 + 22379^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501122141 is a prime.

It is a super-2 number, since 2×501122141² = 502246800400847762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501122101) 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 7 ways as a sum of consecutive naturals, for example, 1133540 + ... + 1133981.

It is an arithmetic number, because the mean of its divisors is an integer number (71426943).

Almost surely, 2^501122141 is an apocalyptic number.

It is an amenable number.

501122141 is a deficient number, since it is larger than the sum of its proper divisors (70293403).

501122141 is a wasteful number, since it uses less digits than its factorization.

501122141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267551.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 501122141 is about 22385.7575480483. The cubic root of 501122141 is about 794.2938449481.

Adding to 501122141 its reverse (141221105), we get a palindrome (642343246).

The spelling of 501122141 in words is "five hundred one million, one hundred twenty-two thousand, one hundred forty-one".