135023424 has 56 divisors (see below), whose sum is σ = 376062240. Its totient is φ = 42637824.

The previous prime is 135023419. The next prime is 135023437. The reversal of 135023424 is 424320531.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 135023394 and 135023403.

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, 14859 + ... + 22154.

Almost surely, 2^135023424 is an apocalyptic number.

It is an amenable number.

135023424 is an abundant number, since it is smaller than the sum of its proper divisors (241038816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135023424 is a wasteful number, since it uses less digits than its factorization.

135023424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37047 (or 37037 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 135023424 is about 11619.9580033664. The cubic root of 135023424 is about 513.0224522698.

Adding to 135023424 its reverse (424320531), we get a palindrome (559343955).

The spelling of 135023424 in words is "one hundred thirty-five million, twenty-three thousand, four hundred twenty-four".