135520535 has 8 divisors (see below), whose sum is σ = 162689856. Its totient is φ = 108372960.

The previous prime is 135520519. The next prime is 135520571. The reversal of 135520535 is 535025531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135520535 - 2⁴ = 135520519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135520498 and 135520507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15890 + ... + 22880.

It is an arithmetic number, because the mean of its divisors is an integer number (20336232).

Almost surely, 2^135520535 is an apocalyptic number.

135520535 is a deficient number, since it is larger than the sum of its proper divisors (27169321).

135520535 is an equidigital number, since it uses as much as digits as its factorization.

135520535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10873.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 135520535 is about 11641.3287471835. The cubic root of 135520535 is about 513.6512734478.

The spelling of 135520535 in words is "one hundred thirty-five million, five hundred twenty thousand, five hundred thirty-five".