135146987 has 2 divisors, whose sum is σ = 135146988. Its totient is φ = 135146986.

The previous prime is 135146971. The next prime is 135147007. The reversal of 135146987 is 789641531.

135146987 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 135146987 - 2⁴ = 135146971 is a prime.

It is not a weakly prime, because it can be changed into another prime (135146917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67573493 + 67573494.

It is an arithmetic number, because the mean of its divisors is an integer number (67573494).

Almost surely, 2^135146987 is an apocalyptic number.

135146987 is a deficient number, since it is larger than the sum of its proper divisors (1).

135146987 is an equidigital number, since it uses as much as digits as its factorization.

135146987 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 135146987 is about 11625.2736311882. The cubic root of 135146987 is about 513.1788973875.

The spelling of 135146987 in words is "one hundred thirty-five million, one hundred forty-six thousand, nine hundred eighty-seven".