135309277 has 4 divisors (see below), whose sum is σ = 136704316. Its totient is φ = 133914240.

The previous prime is 135309271. The next prime is 135309313. The reversal of 135309277 is 772903531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 772903531 = 79 ⋅9783589.

It can be written as a sum of positive squares in 2 ways, for example, as 106729561 + 28579716 = 10331^2 + 5346^2 .

It is a cyclic number.

It is not a de Polignac number, because 135309277 - 2³ = 135309269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135309271) 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 in 3 ways as a sum of consecutive naturals, for example, 697374 + ... + 697567.

It is an arithmetic number, because the mean of its divisors is an integer number (34176079).

Almost surely, 2^135309277 is an apocalyptic number.

It is an amenable number.

135309277 is a deficient number, since it is larger than the sum of its proper divisors (1395039).

135309277 is an equidigital number, since it uses as much as digits as its factorization.

135309277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395038.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 135309277 is about 11632.2515877194. The cubic root of 135309277 is about 513.3842305842.

The spelling of 135309277 in words is "one hundred thirty-five million, three hundred nine thousand, two hundred seventy-seven".