135231814 has 8 divisors (see below), whose sum is σ = 209842560. Its totient is φ = 65284296.

The previous prime is 135231791. The next prime is 135231869. The reversal of 135231814 is 418132531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165734 + ... + 1165849.

It is an arithmetic number, because the mean of its divisors is an integer number (26230320).

Almost surely, 2^135231814 is an apocalyptic number.

135231814 is a deficient number, since it is larger than the sum of its proper divisors (74610746).

135231814 is a wasteful number, since it uses less digits than its factorization.

135231814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331614.

The product of its digits is 2880, while the sum is 28.

The square root of 135231814 is about 11628.9214461187. The cubic root of 135231814 is about 513.2862430333.

The spelling of 135231814 in words is "one hundred thirty-five million, two hundred thirty-one thousand, eight hundred fourteen".