135423036 has 96 divisors (see below), whose sum is σ = 403343360. Its totient is φ = 38491200.

The previous prime is 135423007. The next prime is 135423047. The reversal of 135423036 is 630324531.

It is a happy number.

135423036 is a `hidden beast` number, since 1 + 354 + 2 + 303 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204546 + ... + 205206.

Almost surely, 2^135423036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135423036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201671680).

135423036 is an abundant number, since it is smaller than the sum of its proper divisors (267920324).

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

135423036 is a wasteful number, since it uses less digits than its factorization.

135423036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 135423036 is about 11637.1403703831. The cubic root of 135423036 is about 513.5280633373.

Adding to 135423036 its reverse (630324531), we get a palindrome (765747567).

The spelling of 135423036 in words is "one hundred thirty-five million, four hundred twenty-three thousand, thirty-six".