135087187 has 2 divisors, whose sum is σ = 135087188. Its totient is φ = 135087186.

The previous prime is 135087163. The next prime is 135087193. The reversal of 135087187 is 781780531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135087187 - 2¹⁵ = 135054419 is a prime.

It is not a weakly prime, because it can be changed into another prime (135087107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67543593 + 67543594.

It is an arithmetic number, because the mean of its divisors is an integer number (67543594).

Almost surely, 2^135087187 is an apocalyptic number.

135087187 is a deficient number, since it is larger than the sum of its proper divisors (1).

135087187 is an equidigital number, since it uses as much as digits as its factorization.

135087187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 135087187 is about 11622.7013641408. The cubic root of 135087187 is about 513.1031955506.

The spelling of 135087187 in words is "one hundred thirty-five million, eighty-seven thousand, one hundred eighty-seven".