135403232406 has 16 divisors (see below), whose sum is σ = 291637731504. Its totient is φ = 41662533024.

The previous prime is 135403232401. The next prime is 135403232453. The reversal of 135403232406 is 604232304531.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135403232401) 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, 867969361 + ... + 867969516.

It is an arithmetic number, because the mean of its divisors is an integer number (18227358219).

Almost surely, 2^135403232406 is an apocalyptic number.

135403232406 is an abundant number, since it is smaller than the sum of its proper divisors (156234499098).

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

135403232406 is a wasteful number, since it uses less digits than its factorization.

135403232406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735938895.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 135403232406 its reverse (604232304531), we get a palindrome (739635536937).

The spelling of 135403232406 in words is "one hundred thirty-five billion, four hundred three million, two hundred thirty-two thousand, four hundred six".