135145277 has 2 divisors, whose sum is σ = 135145278. Its totient is φ = 135145276.

The previous prime is 135145273. The next prime is 135145301. The reversal of 135145277 is 772541531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86508601 + 48636676 = 9301^2 + 6974^2 .

It is an emirp because it is prime and its reverse (772541531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135145277 - 2² = 135145273 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135145273) 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, 67572638 + 67572639.

It is an arithmetic number, because the mean of its divisors is an integer number (67572639).

Almost surely, 2^135145277 is an apocalyptic number.

It is an amenable number.

135145277 is a deficient number, since it is larger than the sum of its proper divisors (1).

135145277 is an equidigital number, since it uses as much as digits as its factorization.

135145277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 135145277 is about 11625.2000842996. The cubic root of 135145277 is about 513.1767329796.

The spelling of 135145277 in words is "one hundred thirty-five million, one hundred forty-five thousand, two hundred seventy-seven".