135140287 has 2 divisors, whose sum is σ = 135140288. Its totient is φ = 135140286.

The previous prime is 135140281. The next prime is 135140297. The reversal of 135140287 is 782041531.

135140287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135140287 - 2¹⁵ = 135107519 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 (135140281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67570143 + 67570144.

It is an arithmetic number, because the mean of its divisors is an integer number (67570144).

Almost surely, 2^135140287 is an apocalyptic number.

135140287 is a deficient number, since it is larger than the sum of its proper divisors (1).

135140287 is an equidigital number, since it uses as much as digits as its factorization.

135140287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 135140287 is about 11624.9854623565. The cubic root of 135140287 is about 513.1704168545.

The spelling of 135140287 in words is "one hundred thirty-five million, one hundred forty thousand, two hundred eighty-seven".