135816929 has 2 divisors, whose sum is σ = 135816930. Its totient is φ = 135816928.

The previous prime is 135816917. The next prime is 135816949. The reversal of 135816929 is 929618531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93566929 + 42250000 = 9673^2 + 6500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135816929 is a prime.

It is a Chen prime.

It is equal to p_7688951 and since 135816929 and 7688951 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135816929.

It is not a weakly prime, because it can be changed into another prime (135816949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67908464 + 67908465.

It is an arithmetic number, because the mean of its divisors is an integer number (67908465).

Almost surely, 2^135816929 is an apocalyptic number.

It is an amenable number.

135816929 is a deficient number, since it is larger than the sum of its proper divisors (1).

135816929 is an equidigital number, since it uses as much as digits as its factorization.

135816929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 44.

The square root of 135816929 is about 11654.0520421011. The cubic root of 135816929 is about 514.0254659419.

The spelling of 135816929 in words is "one hundred thirty-five million, eight hundred sixteen thousand, nine hundred twenty-nine".