501421141 has 12 divisors (see below), whose sum is σ = 545807748. Its totient is φ = 460422144.

The previous prime is 501421139. The next prime is 501421147. The reversal of 501421141 is 141124105.

It can be written as a sum of positive squares in 6 ways, for example, as 285948100 + 215473041 = 16910^2 + 14679^2 .

It is not a de Polignac number, because 501421141 - 2¹ = 501421139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501421147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24931 + ... + 40303.

It is an arithmetic number, because the mean of its divisors is an integer number (45483979).

Almost surely, 2^501421141 is an apocalyptic number.

It is an amenable number.

501421141 is a deficient number, since it is larger than the sum of its proper divisors (44386607).

501421141 is a wasteful number, since it uses less digits than its factorization.

501421141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15592 (or 15579 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 501421141 is about 22392.4349055658. The cubic root of 501421141 is about 794.4517882394.

Adding to 501421141 its reverse (141124105), we get a palindrome (642545246).

The spelling of 501421141 in words is "five hundred one million, four hundred twenty-one thousand, one hundred forty-one".