135475 has 6 divisors (see below), whose sum is σ = 168020. Its totient is φ = 108360.

The previous prime is 135469. The next prime is 135479. The reversal of 135475 is 574531.

It is not a de Polignac number, because 135475 - 2³ = 135467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5419 = 135475 / (1 + 3 + 5 + 4 + 7 + 5).

135475 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (135479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2685 + ... + 2734.

2¹³⁵⁴⁷⁵ is an apocalyptic number.

135475 is a deficient number, since it is larger than the sum of its proper divisors (32545).

135475 is an equidigital number, since it uses as much as digits as its factorization.

135475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429 (or 5424 counting only the distinct ones).

The product of its digits is 2100, while the sum is 25.

The square root of 135475 is about 368.0692869556. The cubic root of 135475 is about 51.3593737934.

The spelling of 135475 in words is "one hundred thirty-five thousand, four hundred seventy-five".