513226169 has 2 divisors, whose sum is σ = 513226170. Its totient is φ = 513226168.

The previous prime is 513226099. The next prime is 513226171. The reversal of 513226169 is 961622315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329894569 + 183331600 = 18163^2 + 13540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513226169 is a prime.

It is a super-2 number, since 2×513226169² = 526802201092833122, which contains 22 as substring.

Together with 513226171, 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 (513228169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256613084 + 256613085.

It is an arithmetic number, because the mean of its divisors is an integer number (256613085).

Almost surely, 2^513226169 is an apocalyptic number.

It is an amenable number.

513226169 is a deficient number, since it is larger than the sum of its proper divisors (1).

513226169 is an equidigital number, since it uses as much as digits as its factorization.

513226169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 513226169 is about 22654.4955582772. The cubic root of 513226169 is about 800.6381205549.

The spelling of 513226169 in words is "five hundred thirteen million, two hundred twenty-six thousand, one hundred sixty-nine".