135545287 has 2 divisors, whose sum is σ = 135545288. Its totient is φ = 135545286.

The previous prime is 135545281. The next prime is 135545323. The reversal of 135545287 is 782545531.

It is a weak prime.

It is an emirp because it is prime and its reverse (782545531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135545287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135545281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67772643 + 67772644.

It is an arithmetic number, because the mean of its divisors is an integer number (67772644).

Almost surely, 2^135545287 is an apocalyptic number.

135545287 is a deficient number, since it is larger than the sum of its proper divisors (1).

135545287 is an equidigital number, since it uses as much as digits as its factorization.

135545287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 40.

The square root of 135545287 is about 11642.3918075282. The cubic root of 135545287 is about 513.6825433026.

The spelling of 135545287 in words is "one hundred thirty-five million, five hundred forty-five thousand, two hundred eighty-seven".