135254231 has 8 divisors (see below), whose sum is σ = 159906720. Its totient is φ = 111934368.

The previous prime is 135254201. The next prime is 135254233. The reversal of 135254231 is 132452531.

It is a happy number.

135254231 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 not a de Polignac number, because 135254231 - 2²² = 131059927 is a prime.

It is a super-2 number, since 2×135254231² = 36587414006802722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135254231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135254233) 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, 332936 + ... + 333341.

It is an arithmetic number, because the mean of its divisors is an integer number (19988340).

Almost surely, 2^135254231 is an apocalyptic number.

135254231 is a deficient number, since it is larger than the sum of its proper divisors (24652489).

135254231 is an equidigital number, since it uses as much as digits as its factorization.

135254231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666313.

The product of its digits is 3600, while the sum is 26.

The square root of 135254231 is about 11629.8852530883. The cubic root of 135254231 is about 513.3146034751.

The spelling of 135254231 in words is "one hundred thirty-five million, two hundred fifty-four thousand, two hundred thirty-one".