135995477 has 2 divisors, whose sum is σ = 135995478. Its totient is φ = 135995476.

The previous prime is 135995467. The next prime is 135995479. The reversal of 135995477 is 774599531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128845201 + 7150276 = 11351^2 + 2674^2 .

It is an emirp because it is prime and its reverse (774599531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135995477 - 2⁸ = 135995221 is a prime.

Together with 135995479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135995479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67997738 + 67997739.

It is an arithmetic number, because the mean of its divisors is an integer number (67997739).

Almost surely, 2^135995477 is an apocalyptic number.

It is an amenable number.

135995477 is a deficient number, since it is larger than the sum of its proper divisors (1).

135995477 is an equidigital number, since it uses as much as digits as its factorization.

135995477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 50.

The square root of 135995477 is about 11661.7098660531. The cubic root of 135995477 is about 514.2506171338.

The spelling of 135995477 in words is "one hundred thirty-five million, nine hundred ninety-five thousand, four hundred seventy-seven".