135026231 has 8 divisors (see below), whose sum is σ = 136651200. Its totient is φ = 133406208.

The previous prime is 135026207. The next prime is 135026251. The reversal of 135026231 is 132620531.

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

It is a cyclic number.

It is not a de Polignac number, because 135026231 - 2¹⁰ = 135025207 is a prime.

It is a super-2 number, since 2×135026231² = 36464166116130722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135026197 and 135026206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135026251) 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, 101090 + ... + 102416.

It is an arithmetic number, because the mean of its divisors is an integer number (17081400).

Almost surely, 2^135026231 is an apocalyptic number.

135026231 is a deficient number, since it is larger than the sum of its proper divisors (1624969).

135026231 is a wasteful number, since it uses less digits than its factorization.

135026231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 135026231 is about 11620.0787863078. The cubic root of 135026231 is about 513.0260073173.

Adding to 135026231 its reverse (132620531), we get a palindrome (267646762).

The spelling of 135026231 in words is "one hundred thirty-five million, twenty-six thousand, two hundred thirty-one".