135226214231 has 4 divisors (see below), whose sum is σ = 135231405072. Its totient is φ = 135221023392.

The previous prime is 135226214219. The next prime is 135226214261. The reversal of 135226214231 is 132412622531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135226214231 - 2³⁴ = 118046345047 is a prime.

It is a super-2 number, since 2×135226214231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135226214261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556146 + ... + 2608511.

It is an arithmetic number, because the mean of its divisors is an integer number (33807851268).

Almost surely, 2^135226214231 is an apocalyptic number.

135226214231 is a deficient number, since it is larger than the sum of its proper divisors (5190841).

135226214231 is an equidigital number, since it uses as much as digits as its factorization.

135226214231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190840.

The product of its digits is 17280, while the sum is 32.

Adding to 135226214231 its reverse (132412622531), we get a palindrome (267638836762).

The spelling of 135226214231 in words is "one hundred thirty-five billion, two hundred twenty-six million, two hundred fourteen thousand, two hundred thirty-one".