135782687 has 2 divisors, whose sum is σ = 135782688. Its totient is φ = 135782686.

The previous prime is 135782677. The next prime is 135782719. The reversal of 135782687 is 786287531.

It is a happy number.

135782687 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 135782687 - 2¹⁴ = 135766303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135782617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67891343 + 67891344.

It is an arithmetic number, because the mean of its divisors is an integer number (67891344).

Almost surely, 2^135782687 is an apocalyptic number.

135782687 is a deficient number, since it is larger than the sum of its proper divisors (1).

135782687 is an equidigital number, since it uses as much as digits as its factorization.

135782687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 47.

The square root of 135782687 is about 11652.5828467340. The cubic root of 135782687 is about 513.9822638179.

The spelling of 135782687 in words is "one hundred thirty-five million, seven hundred eighty-two thousand, six hundred eighty-seven".