135528375 has 16 divisors (see below), whose sum is σ = 225519840. Its totient is φ = 72281600.

The previous prime is 135528361. The next prime is 135528391. The reversal of 135528375 is 573825531.

It is not a de Polignac number, because 135528375 - 2⁹ = 135527863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180330 + ... + 181079.

It is an arithmetic number, because the mean of its divisors is an integer number (14094990).

Almost surely, 2^135528375 is an apocalyptic number.

135528375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135528375 is a deficient number, since it is larger than the sum of its proper divisors (89991465).

135528375 is an equidigital number, since it uses as much as digits as its factorization.

135528375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361427 (or 361417 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 135528375 is about 11641.6654736339. The cubic root of 135528375 is about 513.6611783387.

The spelling of 135528375 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, three hundred seventy-five".