505120141 has 2 divisors, whose sum is σ = 505120142. Its totient is φ = 505120140.

The previous prime is 505120103. The next prime is 505120151. The reversal of 505120141 is 141021505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367527241 + 137592900 = 19171^2 + 11730^2 .

It is a cyclic number.

It is not a de Polignac number, because 505120141 - 2²⁵ = 471565709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505120151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252560070 + 252560071.

It is an arithmetic number, because the mean of its divisors is an integer number (252560071).

Almost surely, 2^505120141 is an apocalyptic number.

It is an amenable number.

505120141 is a deficient number, since it is larger than the sum of its proper divisors (1).

505120141 is an equidigital number, since it uses as much as digits as its factorization.

505120141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 505120141 is about 22474.8779974442. The cubic root of 505120141 is about 796.4005695179.

Adding to 505120141 its reverse (141021505), we get a palindrome (646141646).

The spelling of 505120141 in words is "five hundred five million, one hundred twenty thousand, one hundred forty-one".