135649187 has 2 divisors, whose sum is σ = 135649188. Its totient is φ = 135649186.

The previous prime is 135649139. The next prime is 135649229. The reversal of 135649187 is 781946531.

135649187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135649187 - 2¹⁴ = 135632803 is a prime.

It is not a weakly prime, because it can be changed into another prime (135649117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67824593 + 67824594.

It is an arithmetic number, because the mean of its divisors is an integer number (67824594).

Almost surely, 2^135649187 is an apocalyptic number.

135649187 is a deficient number, since it is larger than the sum of its proper divisors (1).

135649187 is an equidigital number, since it uses as much as digits as its factorization.

135649187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 135649187 is about 11646.8530942912. The cubic root of 135649187 is about 513.8137614025.

The spelling of 135649187 in words is "one hundred thirty-five million, six hundred forty-nine thousand, one hundred eighty-seven".