135511535 has 4 divisors (see below), whose sum is σ = 162613848. Its totient is φ = 108409224.

The previous prime is 135511531. The next prime is 135511543. The reversal of 135511535 is 535115531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535115531 = 643 ⋅832217.

It is a cyclic number.

It is not a de Polignac number, because 135511535 - 2² = 135511531 is a prime.

It is a super-2 number, since 2×135511535² = 36726752236112450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135511498 and 135511507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135511531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13551149 + ... + 13551158.

It is an arithmetic number, because the mean of its divisors is an integer number (40653462).

Almost surely, 2^135511535 is an apocalyptic number.

135511535 is a deficient number, since it is larger than the sum of its proper divisors (27102313).

135511535 is an equidigital number, since it uses as much as digits as its factorization.

135511535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27102312.

The product of its digits is 5625, while the sum is 29.

The square root of 135511535 is about 11640.9421869538. The cubic root of 135511535 is about 513.6399025664.

The spelling of 135511535 in words is "one hundred thirty-five million, five hundred eleven thousand, five hundred thirty-five".