69135169 has 2 divisors, whose sum is σ = 69135170. Its totient is φ = 69135168.

The previous prime is 69135163. The next prime is 69135173. The reversal of 69135169 is 96153196.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65804544 + 3330625 = 8112^2 + 1825^2 .

It is a cyclic number.

It is not a de Polignac number, because 69135169 - 2⁷ = 69135041 is a prime.

It is a super-2 number, since 2×69135169² = 9559343185317122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (69135163) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34567584 + 34567585.

It is an arithmetic number, because the mean of its divisors is an integer number (34567585).

Almost surely, 2^69135169 is an apocalyptic number.

It is an amenable number.

69135169 is a deficient number, since it is larger than the sum of its proper divisors (1).

69135169 is an equidigital number, since it uses as much as digits as its factorization.

69135169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 69135169 is about 8314.7560998504. The cubic root of 69135169 is about 410.4242465634.

The spelling of 69135169 in words is "sixty-nine million, one hundred thirty-five thousand, one hundred sixty-nine".