135231154 has 8 divisors (see below), whose sum is σ = 204306480. Its totient is φ = 67128996.

The previous prime is 135231149. The next prime is 135231163. The reversal of 135231154 is 451132531.

It is a happy number.

135231154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242944 + ... + 243499.

It is an arithmetic number, because the mean of its divisors is an integer number (25538310).

Almost surely, 2^135231154 is an apocalyptic number.

135231154 is a deficient number, since it is larger than the sum of its proper divisors (69075326).

135231154 is a wasteful number, since it uses less digits than its factorization.

135231154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486584.

The product of its digits is 1800, while the sum is 25.

The square root of 135231154 is about 11628.8930685599. The cubic root of 135231154 is about 513.2854079993.

Adding to 135231154 its reverse (451132531), we get a palindrome (586363685).

The spelling of 135231154 in words is "one hundred thirty-five million, two hundred thirty-one thousand, one hundred fifty-four".