508421161 has 2 divisors, whose sum is σ = 508421162. Its totient is φ = 508421160.

The previous prime is 508421101. The next prime is 508421167. The reversal of 508421161 is 161124805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508231936 + 189225 = 22544^2 + 435^2 .

It is a cyclic number.

It is not a de Polignac number, because 508421161 - 2¹¹ = 508419113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (508421167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254210580 + 254210581.

It is an arithmetic number, because the mean of its divisors is an integer number (254210581).

Almost surely, 2^508421161 is an apocalyptic number.

It is an amenable number.

508421161 is a deficient number, since it is larger than the sum of its proper divisors (1).

508421161 is an equidigital number, since it uses as much as digits as its factorization.

508421161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 508421161 is about 22548.1964023733. The cubic root of 508421161 is about 798.1316613895.

Adding to 508421161 its reverse (161124805), we get a palindrome (669545966).

It can be divided in two parts, 50842 and 1161, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 508421161 in words is "five hundred eight million, four hundred twenty-one thousand, one hundred sixty-one".