505131841 has 2 divisors, whose sum is σ = 505131842. Its totient is φ = 505131840.

The previous prime is 505131811. The next prime is 505131877. The reversal of 505131841 is 148131505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 480530241 + 24601600 = 21921^2 + 4960^2 .

It is a cyclic number.

It is not a de Polignac number, because 505131841 - 2⁷ = 505131713 is a prime.

It is not a weakly prime, because it can be changed into another prime (505131811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252565920 + 252565921.

It is an arithmetic number, because the mean of its divisors is an integer number (252565921).

Almost surely, 2^505131841 is an apocalyptic number.

It is an amenable number.

505131841 is a deficient number, since it is larger than the sum of its proper divisors (1).

505131841 is an equidigital number, since it uses as much as digits as its factorization.

505131841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 505131841 is about 22475.1382865601. The cubic root of 505131841 is about 796.4067184278.

The spelling of 505131841 in words is "five hundred five million, one hundred thirty-one thousand, eight hundred forty-one".