135135424 has 14 divisors (see below), whose sum is σ = 268159484. Its totient is φ = 67567680.

The previous prime is 135135421. The next prime is 135135439. The reversal of 135135424 is 424531531.

135135424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 135135392 and 135135401.

It is not an unprimeable number, because it can be changed into a prime (135135421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055682 + ... + 1055809.

Almost surely, 2^135135424 is an apocalyptic number.

It is an amenable number.

135135424 is a deficient number, since it is larger than the sum of its proper divisors (133024060).

135135424 is an equidigital number, since it uses as much as digits as its factorization.

135135424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111503 (or 2111493 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 135135424 is about 11624.7762989229. The cubic root of 135135424 is about 513.1642613309.

Adding to 135135424 its reverse (424531531), we get a palindrome (559666955).

The spelling of 135135424 in words is "one hundred thirty-five million, one hundred thirty-five thousand, four hundred twenty-four".