135388775 has 24 divisors (see below), whose sum is σ = 179750400. Its totient is φ = 100850400.

The previous prime is 135388763. The next prime is 135388777. The reversal of 135388775 is 577883531.

135388775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135388775 - 2⁶ = 135388711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135388777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25610 + ... + 30440.

It is an arithmetic number, because the mean of its divisors is an integer number (7489600).

Almost surely, 2^135388775 is an apocalyptic number.

135388775 is a deficient number, since it is larger than the sum of its proper divisors (44361625).

135388775 is a wasteful number, since it uses less digits than its factorization.

135388775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919 (or 4914 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 135388775 is about 11635.6682231834. The cubic root of 135388775 is about 513.4847534509.

The spelling of 135388775 in words is "one hundred thirty-five million, three hundred eighty-eight thousand, seven hundred seventy-five".