135423924 has 24 divisors (see below), whose sum is σ = 316339968. Its totient is φ = 45091200.

The previous prime is 135423923. The next prime is 135423971. The reversal of 135423924 is 429324531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135423923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5949 + ... + 17499.

It is an arithmetic number, because the mean of its divisors is an integer number (13180832).

Almost surely, 2^135423924 is an apocalyptic number.

It is an amenable number.

135423924 is an abundant number, since it is smaller than the sum of its proper divisors (180916044).

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

135423924 is a wasteful number, since it uses less digits than its factorization.

135423924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12535 (or 12533 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 135423924 is about 11637.1785240238. The cubic root of 135423924 is about 513.5291857754.

The spelling of 135423924 in words is "one hundred thirty-five million, four hundred twenty-three thousand, nine hundred twenty-four".