135787275 has 54 divisors (see below), whose sum is σ = 263431428. Its totient is φ = 66830400.

The previous prime is 135787271. The next prime is 135787297. The reversal of 135787275 is 572787531.

135787275 is a `hidden beast` number, since 1 + 3 + 578 + 7 + 2 + 75 = 666.

135787275 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 135787275 - 2² = 135787271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 135787275.

It is not an unprimeable number, because it can be changed into a prime (135787271) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 36240 + ... + 39810.

Almost surely, 2^135787275 is an apocalyptic number.

135787275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135787275 is a deficient number, since it is larger than the sum of its proper divisors (127644153).

135787275 is a wasteful number, since it uses less digits than its factorization.

135787275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613 (or 3592 counting only the distinct ones).

The product of its digits is 411600, while the sum is 45.

The square root of 135787275 is about 11652.7797112964. The cubic root of 135787275 is about 513.9880527839.

The spelling of 135787275 in words is "one hundred thirty-five million, seven hundred eighty-seven thousand, two hundred seventy-five".