135445087 has 2 divisors, whose sum is σ = 135445088. Its totient is φ = 135445086.

The previous prime is 135445081. The next prime is 135445097. The reversal of 135445087 is 780544531.

135445087 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 a de Polignac number, because none of the positive numbers 2^k-135445087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135445081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67722543 + 67722544.

It is an arithmetic number, because the mean of its divisors is an integer number (67722544).

Almost surely, 2^135445087 is an apocalyptic number.

135445087 is a deficient number, since it is larger than the sum of its proper divisors (1).

135445087 is an equidigital number, since it uses as much as digits as its factorization.

135445087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 135445087 is about 11638.0877724822. The cubic root of 135445087 is about 513.5559345009. Note that the first 3 decimals are identical.

The spelling of 135445087 in words is "one hundred thirty-five million, four hundred forty-five thousand, eighty-seven".