135522135 has 48 divisors (see below), whose sum is σ = 269867520. Its totient is φ = 61629120.

The previous prime is 135522131. The next prime is 135522139. The reversal of 135522135 is 531225531.

It is a happy number.

135522135 is a `hidden beast` number, since 1 + 3 + 5 + 522 + 135 = 666.

It is an interprime number because it is at equal distance from previous prime (135522131) and next prime (135522139).

It is not a de Polignac number, because 135522135 - 2² = 135522131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135522099 and 135522108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135522131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65446 + ... + 67484.

It is an arithmetic number, because the mean of its divisors is an integer number (5622240).

Almost surely, 2^135522135 is an apocalyptic number.

135522135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135522135 is a deficient number, since it is larger than the sum of its proper divisors (134345385).

135522135 is a wasteful number, since it uses less digits than its factorization.

135522135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2265 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 135522135 is about 11641.3974676583. The cubic root of 135522135 is about 513.6532948852.

Adding to 135522135 its reverse (531225531), we get a palindrome (666747666).

The spelling of 135522135 in words is "one hundred thirty-five million, five hundred twenty-two thousand, one hundred thirty-five".