501140441 has 2 divisors, whose sum is σ = 501140442. Its totient is φ = 501140440.

The previous prime is 501140413. The next prime is 501140443. The reversal of 501140441 is 144041105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377486041 + 123654400 = 19429^2 + 11120^2 .

It is a cyclic number.

It is not a de Polignac number, because 501140441 - 2⁶ = 501140377 is a prime.

It is a super-2 number, since 2×501140441² = 502283483211348962, which contains 22 as substring.

Together with 501140443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (501140443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250570220 + 250570221.

It is an arithmetic number, because the mean of its divisors is an integer number (250570221).

Almost surely, 2^501140441 is an apocalyptic number.

It is an amenable number.

501140441 is a deficient number, since it is larger than the sum of its proper divisors (1).

501140441 is an equidigital number, since it uses as much as digits as its factorization.

501140441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 501140441 is about 22386.1662863475. The cubic root of 501140441 is about 794.3035135161.

Adding to 501140441 its reverse (144041105), we get a palindrome (645181546).

The spelling of 501140441 in words is "five hundred one million, one hundred forty thousand, four hundred forty-one".