135528499 has 4 divisors (see below), whose sum is σ = 135563400. Its totient is φ = 135493600.

The previous prime is 135528467. The next prime is 135528511. The reversal of 135528499 is 994825531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135528499 - 2⁵ = 135528467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135528439) 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 3 ways as a sum of consecutive naturals, for example, 10774 + ... + 19675.

It is an arithmetic number, because the mean of its divisors is an integer number (33890850).

Almost surely, 2^135528499 is an apocalyptic number.

135528499 is a deficient number, since it is larger than the sum of its proper divisors (34901).

135528499 is an equidigital number, since it uses as much as digits as its factorization.

135528499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34900.

The product of its digits is 388800, while the sum is 46.

The square root of 135528499 is about 11641.6707993312. The cubic root of 135528499 is about 513.6613349946.

The spelling of 135528499 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, four hundred ninety-nine".