135266869 has 2 divisors, whose sum is σ = 135266870. Its totient is φ = 135266868.

The previous prime is 135266851. The next prime is 135266891. The reversal of 135266869 is 968662531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69056100 + 66210769 = 8310^2 + 8137^2 .

It is a cyclic number.

It is not a de Polignac number, because 135266869 - 2⁵ = 135266837 is a prime.

It is a super-2 number, since 2×135266869² = 36594251698126322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135266809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67633434 + 67633435.

It is an arithmetic number, because the mean of its divisors is an integer number (67633435).

Almost surely, 2^135266869 is an apocalyptic number.

It is an amenable number.

135266869 is a deficient number, since it is larger than the sum of its proper divisors (1).

135266869 is an equidigital number, since it uses as much as digits as its factorization.

135266869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The square root of 135266869 is about 11630.4285819569. The cubic root of 135266869 is about 513.3305908195.

The spelling of 135266869 in words is "one hundred thirty-five million, two hundred sixty-six thousand, eight hundred sixty-nine".