135308477 has 2 divisors, whose sum is σ = 135308478. Its totient is φ = 135308476.

The previous prime is 135308449. The next prime is 135308479. The reversal of 135308477 is 774803531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71132356 + 64176121 = 8434^2 + 8011^2 .

It is a cyclic number.

It is not a de Polignac number, because 135308477 - 2⁶ = 135308413 is a prime.

Together with 135308479, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135308477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135308479) 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, 67654238 + 67654239.

It is an arithmetic number, because the mean of its divisors is an integer number (67654239).

Almost surely, 2^135308477 is an apocalyptic number.

It is an amenable number.

135308477 is a deficient number, since it is larger than the sum of its proper divisors (1).

135308477 is an equidigital number, since it uses as much as digits as its factorization.

135308477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 135308477 is about 11632.2172005168. The cubic root of 135308477 is about 513.3832188079.

The spelling of 135308477 in words is "one hundred thirty-five million, three hundred eight thousand, four hundred seventy-seven".