135415771 has 2 divisors, whose sum is σ = 135415772. Its totient is φ = 135415770.

The previous prime is 135415769. The next prime is 135415799. The reversal of 135415771 is 177514531.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (177514531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135415771 - 2¹ = 135415769 is a prime.

Together with 135415769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (135415711) 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, 67707885 + 67707886.

It is an arithmetic number, because the mean of its divisors is an integer number (67707886).

Almost surely, 2^135415771 is an apocalyptic number.

135415771 is a deficient number, since it is larger than the sum of its proper divisors (1).

135415771 is an equidigital number, since it uses as much as digits as its factorization.

135415771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 34.

The square root of 135415771 is about 11636.8282190638. The cubic root of 135415771 is about 513.5188801431.

The spelling of 135415771 in words is "one hundred thirty-five million, four hundred fifteen thousand, seven hundred seventy-one".