515227 has 2 divisors, whose sum is σ = 515228. Its totient is φ = 515226.

The previous prime is 515191. The next prime is 515231. The reversal of 515227 is 722515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-515227 is a prime.

515227 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 515198 and 515207.

It is not a weakly prime, because it can be changed into another prime (515237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257613 + 257614.

It is an arithmetic number, because the mean of its divisors is an integer number (257614).

2⁵¹⁵²²⁷ is an apocalyptic number.

515227 is a deficient number, since it is larger than the sum of its proper divisors (1).

515227 is an equidigital number, since it uses as much as digits as its factorization.

515227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 700, while the sum is 22.

The square root of 515227 is about 717.7931456903. The cubic root of 515227 is about 80.1677210416.

It can be divided in two parts, 51522 and 7, that added together give a square (51529 = 227²).

The spelling of 515227 in words is "five hundred fifteen thousand, two hundred twenty-seven".